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Finding the Fourth Proportional to 641,575.90, 885,596.05 and 369,752.31

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Solution

The fourth proportional to 641,575.90, 885,596.05 and 369,752.31 is: 510,385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,575.90 : 885,596.05 = 369,752.31 : x
  2. Step 2: Convert to fraction form
    641,575.90/885,596.05 = 369,752.31/x
  3. Step 3: Cross multiply
    641,575.90x = 885,596.05 × 369,752.31
  4. Step 4: Simplify right side
    641,575.90x = 327,451,185,214.38
  5. Step 5: Solve for x
    x = 327,451,185,214.38/641,575.90
  6. Step 6: Final answer
    x = 510,385.73

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1.5x scale

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.