Home / 923,515.40-1,385,273.10-424,879.40

Finding the Fourth Proportional to 923,515.40, 1,385,273.10 and 424,879.40

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Solution

The fourth proportional to 923,515.40, 1,385,273.10 and 424,879.40 is: 637,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,515.40 : 1,385,273.10 = 424,879.40 : x
  2. Step 2: Convert to fraction form
    923,515.40/1,385,273.10 = 424,879.40/x
  3. Step 3: Cross multiply
    923,515.40x = 1,385,273.10 × 424,879.40
  4. Step 4: Simplify right side
    923,515.40x = 588,574,003,564.14
  5. Step 5: Solve for x
    x = 588,574,003,564.14/923,515.40
  6. Step 6: Final answer
    x = 637,319.10

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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.