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Finding the Fourth Proportional to 866,809.35, 1,300,215.85 and 467,638.11

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Solution

The fourth proportional to 866,809.35, 1,300,215.85 and 467,638.11 is: 701,458.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,809.35 : 1,300,215.85 = 467,638.11 : x
  2. Step 2: Convert to fraction form
    866,809.35/1,300,215.85 = 467,638.11/x
  3. Step 3: Cross multiply
    866,809.35x = 1,300,215.85 × 467,638.11
  4. Step 4: Simplify right side
    866,809.35x = 608,030,481,516.95
  5. Step 5: Solve for x
    x = 608,030,481,516.95/866,809.35
  6. Step 6: Final answer
    x = 701,458.15

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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.