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Finding the Fourth Proportional to 418,520.40, 627,780.60 and 366,032.40

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Solution

The fourth proportional to 418,520.40, 627,780.60 and 366,032.40 is: 549,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,520.40 : 627,780.60 = 366,032.40 : x
  2. Step 2: Convert to fraction form
    418,520.40/627,780.60 = 366,032.40/x
  3. Step 3: Cross multiply
    418,520.40x = 627,780.60 × 366,032.40
  4. Step 4: Simplify right side
    418,520.40x = 229,788,039,691.44
  5. Step 5: Solve for x
    x = 229,788,039,691.44/418,520.40
  6. Step 6: Final answer
    x = 549,048.60

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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.