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Finding the Fourth Proportional to 575,081.20, 861,844.20 and 508,207.60

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Solution

The fourth proportional to 575,081.20, 861,844.20 and 508,207.60 is: 761,624.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,081.20 : 861,844.20 = 508,207.60 : x
  2. Step 2: Convert to fraction form
    575,081.20/861,844.20 = 508,207.60/x
  3. Step 3: Cross multiply
    575,081.20x = 861,844.20 × 508,207.60
  4. Step 4: Simplify right side
    575,081.20x = 437,995,772,455.92
  5. Step 5: Solve for x
    x = 437,995,772,455.92/575,081.20
  6. Step 6: Final answer
    x = 761,624.22

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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.