Home / 458,538.90-686,253.15-402,551.70

Finding the Fourth Proportional to 458,538.90, 686,253.15 and 402,551.70

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Solution

The fourth proportional to 458,538.90, 686,253.15 and 402,551.70 is: 602,462.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,538.90 : 686,253.15 = 402,551.70 : x
  2. Step 2: Convert to fraction form
    458,538.90/686,253.15 = 402,551.70/x
  3. Step 3: Cross multiply
    458,538.90x = 686,253.15 × 402,551.70
  4. Step 4: Simplify right side
    458,538.90x = 276,252,372,162.86
  5. Step 5: Solve for x
    x = 276,252,372,162.86/458,538.90
  6. Step 6: Final answer
    x = 602,462.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.