Home / 724,577.17-999,870.24-402,287.19

Finding the Fourth Proportional to 724,577.17, 999,870.24 and 402,287.19

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Solution

The fourth proportional to 724,577.17, 999,870.24 and 402,287.19 is: 555,130.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,577.17 : 999,870.24 = 402,287.19 : x
  2. Step 2: Convert to fraction form
    724,577.17/999,870.24 = 402,287.19/x
  3. Step 3: Cross multiply
    724,577.17x = 999,870.24 × 402,287.19
  4. Step 4: Simplify right side
    724,577.17x = 402,234,989,214.23
  5. Step 5: Solve for x
    x = 402,234,989,214.23/724,577.17
  6. Step 6: Final answer
    x = 555,130.64

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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.