Home / 458,046.20-687,069.30-270,961.40

Finding the Fourth Proportional to 458,046.20, 687,069.30 and 270,961.40

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Solution

The fourth proportional to 458,046.20, 687,069.30 and 270,961.40 is: 406,442.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,046.20 : 687,069.30 = 270,961.40 : x
  2. Step 2: Convert to fraction form
    458,046.20/687,069.30 = 270,961.40/x
  3. Step 3: Cross multiply
    458,046.20x = 687,069.30 × 270,961.40
  4. Step 4: Simplify right side
    458,046.20x = 186,169,259,425.02
  5. Step 5: Solve for x
    x = 186,169,259,425.02/458,046.20
  6. Step 6: Final answer
    x = 406,442.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.