Home / 724,465.88-999,743.28-402,167.72

Finding the Fourth Proportional to 724,465.88, 999,743.28 and 402,167.72

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Solution

The fourth proportional to 724,465.88, 999,743.28 and 402,167.72 is: 554,980.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,465.88 : 999,743.28 = 402,167.72 : x
  2. Step 2: Convert to fraction form
    724,465.88/999,743.28 = 402,167.72/x
  3. Step 3: Cross multiply
    724,465.88x = 999,743.28 × 402,167.72
  4. Step 4: Simplify right side
    724,465.88x = 402,064,475,502.92
  5. Step 5: Solve for x
    x = 402,064,475,502.92/724,465.88
  6. Step 6: Final answer
    x = 554,980.55

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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.