Home / 724,281.17-999,631.71-418,302.56

Finding the Fourth Proportional to 724,281.17, 999,631.71 and 418,302.56

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Solution

The fourth proportional to 724,281.17, 999,631.71 and 418,302.56 is: 577,328.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,281.17 : 999,631.71 = 418,302.56 : x
  2. Step 2: Convert to fraction form
    724,281.17/999,631.71 = 418,302.56/x
  3. Step 3: Cross multiply
    724,281.17x = 999,631.71 × 418,302.56
  4. Step 4: Simplify right side
    724,281.17x = 418,148,498,352.02
  5. Step 5: Solve for x
    x = 418,148,498,352.02/724,281.17
  6. Step 6: Final answer
    x = 577,328.97

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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.