Home / 918,009.10-1,377,013.65-498,105.10

Finding the Fourth Proportional to 918,009.10, 1,377,013.65 and 498,105.10

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Solution

The fourth proportional to 918,009.10, 1,377,013.65 and 498,105.10 is: 747,157.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,009.10 : 1,377,013.65 = 498,105.10 : x
  2. Step 2: Convert to fraction form
    918,009.10/1,377,013.65 = 498,105.10/x
  3. Step 3: Cross multiply
    918,009.10x = 1,377,013.65 × 498,105.10
  4. Step 4: Simplify right side
    918,009.10x = 685,897,521,834.62
  5. Step 5: Solve for x
    x = 685,897,521,834.62/918,009.10
  6. Step 6: Final answer
    x = 747,157.65

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Half scale
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Double scale
Find fourth proportional to 918,010.10, 1,377,015.15 and 498,106.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.