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Finding the Fourth Proportional to 539,272.10, 808,519.35 and 302,687.30

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Solution

The fourth proportional to 539,272.10, 808,519.35 and 302,687.30 is: 453,812.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,272.10 : 808,519.35 = 302,687.30 : x
  2. Step 2: Convert to fraction form
    539,272.10/808,519.35 = 302,687.30/x
  3. Step 3: Cross multiply
    539,272.10x = 808,519.35 × 302,687.30
  4. Step 4: Simplify right side
    539,272.10x = 244,728,539,049.26
  5. Step 5: Solve for x
    x = 244,728,539,049.26/539,272.10
  6. Step 6: Final answer
    x = 453,812.72

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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.