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Finding the Fourth Proportional to 579,901.20, 869,949 and 180,448.08

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Solution

The fourth proportional to 579,901.20, 869,949 and 180,448.08 is: 270,702.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,901.20 : 869,949 = 180,448.08 : x
  2. Step 2: Convert to fraction form
    579,901.20/869,949 = 180,448.08/x
  3. Step 3: Cross multiply
    579,901.20x = 869,949 × 180,448.08
  4. Step 4: Simplify right side
    579,901.20x = 156,980,626,747.92
  5. Step 5: Solve for x
    x = 156,980,626,747.92/579,901.20
  6. Step 6: Final answer
    x = 270,702.37

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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.