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Finding the Fourth Proportional to 490,379.52, 736,084.80 and 434,577.60

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Solution

The fourth proportional to 490,379.52, 736,084.80 and 434,577.60 is: 652,323.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,379.52 : 736,084.80 = 434,577.60 : x
  2. Step 2: Convert to fraction form
    490,379.52/736,084.80 = 434,577.60/x
  3. Step 3: Cross multiply
    490,379.52x = 736,084.80 × 434,577.60
  4. Step 4: Simplify right side
    490,379.52x = 319,885,965,780.48
  5. Step 5: Solve for x
    x = 319,885,965,780.48/490,379.52
  6. Step 6: Final answer
    x = 652,323.26

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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.