Home / 747,443.20-1,121,164.80-616,223.20

Finding the Fourth Proportional to 747,443.20, 1,121,164.80 and 616,223.20

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Solution

The fourth proportional to 747,443.20, 1,121,164.80 and 616,223.20 is: 924,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,443.20 : 1,121,164.80 = 616,223.20 : x
  2. Step 2: Convert to fraction form
    747,443.20/1,121,164.80 = 616,223.20/x
  3. Step 3: Cross multiply
    747,443.20x = 1,121,164.80 × 616,223.20
  4. Step 4: Simplify right side
    747,443.20x = 690,887,760,783.36
  5. Step 5: Solve for x
    x = 690,887,760,783.36/747,443.20
  6. Step 6: Final answer
    x = 924,334.80

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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.