Home / 724,584.05-999,957.21-402,294.16

Finding the Fourth Proportional to 724,584.05, 999,957.21 and 402,294.16

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Solution

The fourth proportional to 724,584.05, 999,957.21 and 402,294.16 is: 555,183.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,584.05 : 999,957.21 = 402,294.16 : x
  2. Step 2: Convert to fraction form
    724,584.05/999,957.21 = 402,294.16/x
  3. Step 3: Cross multiply
    724,584.05x = 999,957.21 × 402,294.16
  4. Step 4: Simplify right side
    724,584.05x = 402,276,945,832.89
  5. Step 5: Solve for x
    x = 402,276,945,832.89/724,584.05
  6. Step 6: Final answer
    x = 555,183.27

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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.