Home / 621,500.78-932,298.15-172,216.46

Finding the Fourth Proportional to 621,500.78, 932,298.15 and 172,216.46

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Solution

The fourth proportional to 621,500.78, 932,298.15 and 172,216.46 is: 258,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,500.78 : 932,298.15 = 172,216.46 : x
  2. Step 2: Convert to fraction form
    621,500.78/932,298.15 = 172,216.46/x
  3. Step 3: Cross multiply
    621,500.78x = 932,298.15 × 172,216.46
  4. Step 4: Simplify right side
    621,500.78x = 160,557,082,396.06
  5. Step 5: Solve for x
    x = 160,557,082,396.06/621,500.78
  6. Step 6: Final answer
    x = 258,337.70

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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.