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Finding the Fourth Proportional to 887,622.10, 1,330,777.05 and 488,713.30

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Solution

The fourth proportional to 887,622.10, 1,330,777.05 and 488,713.30 is: 732,708.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,622.10 : 1,330,777.05 = 488,713.30 : x
  2. Step 2: Convert to fraction form
    887,622.10/1,330,777.05 = 488,713.30/x
  3. Step 3: Cross multiply
    887,622.10x = 1,330,777.05 × 488,713.30
  4. Step 4: Simplify right side
    887,622.10x = 650,368,443,669.77
  5. Step 5: Solve for x
    x = 650,368,443,669.77/887,622.10
  6. Step 6: Final answer
    x = 732,708.71

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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.