Home / 729,892.40-1,007,193.48-407,583.20

Finding the Fourth Proportional to 729,892.40, 1,007,193.48 and 407,583.20

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Solution

The fourth proportional to 729,892.40, 1,007,193.48 and 407,583.20 is: 562,432.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,892.40 : 1,007,193.48 = 407,583.20 : x
  2. Step 2: Convert to fraction form
    729,892.40/1,007,193.48 = 407,583.20/x
  3. Step 3: Cross multiply
    729,892.40x = 1,007,193.48 × 407,583.20
  4. Step 4: Simplify right side
    729,892.40x = 410,515,141,597.54
  5. Step 5: Solve for x
    x = 410,515,141,597.54/729,892.40
  6. Step 6: Final answer
    x = 562,432.41

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.