Home / 529,947.58-731,517.89-315,087.13

Finding the Fourth Proportional to 529,947.58, 731,517.89 and 315,087.13

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Solution

The fourth proportional to 529,947.58, 731,517.89 and 315,087.13 is: 434,933.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,947.58 : 731,517.89 = 315,087.13 : x
  2. Step 2: Convert to fraction form
    529,947.58/731,517.89 = 315,087.13/x
  3. Step 3: Cross multiply
    529,947.58x = 731,517.89 × 315,087.13
  4. Step 4: Simplify right side
    529,947.58x = 230,491,873,024.29
  5. Step 5: Solve for x
    x = 230,491,873,024.29/529,947.58
  6. Step 6: Final answer
    x = 434,933.34

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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.