Home / 724,372.76-999,584.38-402,057.49

Finding the Fourth Proportional to 724,372.76, 999,584.38 and 402,057.49

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Solution

The fourth proportional to 724,372.76, 999,584.38 and 402,057.49 is: 554,811.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,372.76 : 999,584.38 = 402,057.49 : x
  2. Step 2: Convert to fraction form
    724,372.76/999,584.38 = 402,057.49/x
  3. Step 3: Cross multiply
    724,372.76x = 999,584.38 × 402,057.49
  4. Step 4: Simplify right side
    724,372.76x = 401,890,386,866.01
  5. Step 5: Solve for x
    x = 401,890,386,866.01/724,372.76
  6. Step 6: Final answer
    x = 554,811.57

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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.