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Finding the Fourth Proportional to 576,187.60, 863,974.20 and 243,387.60

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Solution

The fourth proportional to 576,187.60, 863,974.20 and 243,387.60 is: 364,951.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,187.60 : 863,974.20 = 243,387.60 : x
  2. Step 2: Convert to fraction form
    576,187.60/863,974.20 = 243,387.60/x
  3. Step 3: Cross multiply
    576,187.60x = 863,974.20 × 243,387.60
  4. Step 4: Simplify right side
    576,187.60x = 210,280,606,999.92
  5. Step 5: Solve for x
    x = 210,280,606,999.92/576,187.60
  6. Step 6: Final answer
    x = 364,951.64

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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.