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Finding the Fourth Proportional to 866,841.60, 1,300,266.45 and 305,876.10

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Solution

The fourth proportional to 866,841.60, 1,300,266.45 and 305,876.10 is: 458,815.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,841.60 : 1,300,266.45 = 305,876.10 : x
  2. Step 2: Convert to fraction form
    866,841.60/1,300,266.45 = 305,876.10/x
  3. Step 3: Cross multiply
    866,841.60x = 1,300,266.45 × 305,876.10
  4. Step 4: Simplify right side
    866,841.60x = 397,720,430,686.85
  5. Step 5: Solve for x
    x = 397,720,430,686.85/866,841.60
  6. Step 6: Final answer
    x = 458,815.58

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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.