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Finding the Fourth Proportional to 888,641.60, 1,330,994.10 and 731,177.60

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Solution

The fourth proportional to 888,641.60, 1,330,994.10 and 731,177.60 is: 1,095,146.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,641.60 : 1,330,994.10 = 731,177.60 : x
  2. Step 2: Convert to fraction form
    888,641.60/1,330,994.10 = 731,177.60/x
  3. Step 3: Cross multiply
    888,641.60x = 1,330,994.10 × 731,177.60
  4. Step 4: Simplify right side
    888,641.60x = 973,193,071,652.16
  5. Step 5: Solve for x
    x = 973,193,071,652.16/888,641.60
  6. Step 6: Final answer
    x = 1,095,146.88

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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.