Home / 838,147.38-1,156,643.32-456,176.90

Finding the Fourth Proportional to 838,147.38, 1,156,643.32 and 456,176.90

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Solution

The fourth proportional to 838,147.38, 1,156,643.32 and 456,176.90 is: 629,524.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,147.38 : 1,156,643.32 = 456,176.90 : x
  2. Step 2: Convert to fraction form
    838,147.38/1,156,643.32 = 456,176.90/x
  3. Step 3: Cross multiply
    838,147.38x = 1,156,643.32 × 456,176.90
  4. Step 4: Simplify right side
    838,147.38x = 527,633,964,123.31
  5. Step 5: Solve for x
    x = 527,633,964,123.31/838,147.38
  6. Step 6: Final answer
    x = 629,524.09

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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.