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Finding the Fourth Proportional to 519,909.52, 779,864.30 and 187,485.52

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Solution

The fourth proportional to 519,909.52, 779,864.30 and 187,485.52 is: 281,228.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,909.52 : 779,864.30 = 187,485.52 : x
  2. Step 2: Convert to fraction form
    519,909.52/779,864.30 = 187,485.52/x
  3. Step 3: Cross multiply
    519,909.52x = 779,864.30 × 187,485.52
  4. Step 4: Simplify right side
    519,909.52x = 146,213,263,814.94
  5. Step 5: Solve for x
    x = 146,213,263,814.94/519,909.52
  6. Step 6: Final answer
    x = 281,228.29

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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.