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Finding the Fourth Proportional to 426,073.40, 587,980.84 and 235,086.78

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Solution

The fourth proportional to 426,073.40, 587,980.84 and 235,086.78 is: 324,419.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,073.40 : 587,980.84 = 235,086.78 : x
  2. Step 2: Convert to fraction form
    426,073.40/587,980.84 = 235,086.78/x
  3. Step 3: Cross multiply
    426,073.40x = 587,980.84 × 235,086.78
  4. Step 4: Simplify right side
    426,073.40x = 138,226,522,377.30
  5. Step 5: Solve for x
    x = 138,226,522,377.30/426,073.40
  6. Step 6: Final answer
    x = 324,419.51

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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.