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Finding the Fourth Proportional to 372,651.60, 558,977.40 and 284,078.10

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Solution

The fourth proportional to 372,651.60, 558,977.40 and 284,078.10 is: 426,117.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,651.60 : 558,977.40 = 284,078.10 : x
  2. Step 2: Convert to fraction form
    372,651.60/558,977.40 = 284,078.10/x
  3. Step 3: Cross multiply
    372,651.60x = 558,977.40 × 284,078.10
  4. Step 4: Simplify right side
    372,651.60x = 158,793,237,734.94
  5. Step 5: Solve for x
    x = 158,793,237,734.94/372,651.60
  6. Step 6: Final answer
    x = 426,117.15

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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.