Home / 918,167.10-1,377,250.65-318,929.10

Finding the Fourth Proportional to 918,167.10, 1,377,250.65 and 318,929.10

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Solution

The fourth proportional to 918,167.10, 1,377,250.65 and 318,929.10 is: 478,393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,167.10 : 1,377,250.65 = 318,929.10 : x
  2. Step 2: Convert to fraction form
    918,167.10/1,377,250.65 = 318,929.10/x
  3. Step 3: Cross multiply
    918,167.10x = 1,377,250.65 × 318,929.10
  4. Step 4: Simplify right side
    918,167.10x = 439,245,310,278.92
  5. Step 5: Solve for x
    x = 439,245,310,278.92/918,167.10
  6. Step 6: Final answer
    x = 478,393.65

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Double scale
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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.