Home / 428,905.60-591,841.98-237,871.12

Finding the Fourth Proportional to 428,905.60, 591,841.98 and 237,871.12

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Solution

The fourth proportional to 428,905.60, 591,841.98 and 237,871.12 is: 328,235.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,905.60 : 591,841.98 = 237,871.12 : x
  2. Step 2: Convert to fraction form
    428,905.60/591,841.98 = 237,871.12/x
  3. Step 3: Cross multiply
    428,905.60x = 591,841.98 × 237,871.12
  4. Step 4: Simplify right side
    428,905.60x = 140,782,114,645.62
  5. Step 5: Solve for x
    x = 140,782,114,645.62/428,905.60
  6. Step 6: Final answer
    x = 328,235.66

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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.