Home / 516,997.20-775,495.92-162,038.72

Finding the Fourth Proportional to 516,997.20, 775,495.92 and 162,038.72

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Solution

The fourth proportional to 516,997.20, 775,495.92 and 162,038.72 is: 243,058.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,997.20 : 775,495.92 = 162,038.72 : x
  2. Step 2: Convert to fraction form
    516,997.20/775,495.92 = 162,038.72/x
  3. Step 3: Cross multiply
    516,997.20x = 775,495.92 × 162,038.72
  4. Step 4: Simplify right side
    516,997.20x = 125,660,366,242.02
  5. Step 5: Solve for x
    x = 125,660,366,242.02/516,997.20
  6. Step 6: Final answer
    x = 243,058.12

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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.