Home / 724,126.64-999,307.43-397,470.24

Finding the Fourth Proportional to 724,126.64, 999,307.43 and 397,470.24

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Solution

The fourth proportional to 724,126.64, 999,307.43 and 397,470.24 is: 548,515.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,126.64 : 999,307.43 = 397,470.24 : x
  2. Step 2: Convert to fraction form
    724,126.64/999,307.43 = 397,470.24/x
  3. Step 3: Cross multiply
    724,126.64x = 999,307.43 × 397,470.24
  4. Step 4: Simplify right side
    724,126.64x = 397,194,963,539.05
  5. Step 5: Solve for x
    x = 397,194,963,539.05/724,126.64
  6. Step 6: Final answer
    x = 548,515.89

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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.