Home / 724,683.80-999,839.38-418,648.52

Finding the Fourth Proportional to 724,683.80, 999,839.38 and 418,648.52

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Solution

The fourth proportional to 724,683.80, 999,839.38 and 418,648.52 is: 577,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,683.80 : 999,839.38 = 418,648.52 : x
  2. Step 2: Convert to fraction form
    724,683.80/999,839.38 = 418,648.52/x
  3. Step 3: Cross multiply
    724,683.80x = 999,839.38 × 418,648.52
  4. Step 4: Simplify right side
    724,683.80x = 418,581,276,674.72
  5. Step 5: Solve for x
    x = 418,581,276,674.72/724,683.80
  6. Step 6: Final answer
    x = 577,605.40

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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.