Home / 428,909.10-591,885.27-237,918.30

Finding the Fourth Proportional to 428,909.10, 591,885.27 and 237,918.30

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Solution

The fourth proportional to 428,909.10, 591,885.27 and 237,918.30 is: 328,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,909.10 : 591,885.27 = 237,918.30 : x
  2. Step 2: Convert to fraction form
    428,909.10/591,885.27 = 237,918.30/x
  3. Step 3: Cross multiply
    428,909.10x = 591,885.27 × 237,918.30
  4. Step 4: Simplify right side
    428,909.10x = 140,820,337,233.44
  5. Step 5: Solve for x
    x = 140,820,337,233.44/428,909.10
  6. Step 6: Final answer
    x = 328,322.10

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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.