Home / 428,693.20-591,567.78-237,699.52

Finding the Fourth Proportional to 428,693.20, 591,567.78 and 237,699.52

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Solution

The fourth proportional to 428,693.20, 591,567.78 and 237,699.52 is: 328,009.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,693.20 : 591,567.78 = 237,699.52 : x
  2. Step 2: Convert to fraction form
    428,693.20/591,567.78 = 237,699.52/x
  3. Step 3: Cross multiply
    428,693.20x = 591,567.78 × 237,699.52
  4. Step 4: Simplify right side
    428,693.20x = 140,615,377,353.47
  5. Step 5: Solve for x
    x = 140,615,377,353.47/428,693.20
  6. Step 6: Final answer
    x = 328,009.35

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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.