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Finding the Fourth Proportional to 887,622.60, 1,330,777.80 and 488,713.80

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Solution

The fourth proportional to 887,622.60, 1,330,777.80 and 488,713.80 is: 732,709.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,622.60 : 1,330,777.80 = 488,713.80 : x
  2. Step 2: Convert to fraction form
    887,622.60/1,330,777.80 = 488,713.80/x
  3. Step 3: Cross multiply
    887,622.60x = 1,330,777.80 × 488,713.80
  4. Step 4: Simplify right side
    887,622.60x = 650,369,475,593.64
  5. Step 5: Solve for x
    x = 650,369,475,593.64/887,622.60
  6. Step 6: Final answer
    x = 732,709.46

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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.