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Finding the Fourth Proportional to 888,642.60, 1,330,995.60 and 731,178.60

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Solution

The fourth proportional to 888,642.60, 1,330,995.60 and 731,178.60 is: 1,095,148.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,642.60 : 1,330,995.60 = 731,178.60 : x
  2. Step 2: Convert to fraction form
    888,642.60/1,330,995.60 = 731,178.60/x
  3. Step 3: Cross multiply
    888,642.60x = 1,330,995.60 × 731,178.60
  4. Step 4: Simplify right side
    888,642.60x = 973,195,499,414.16
  5. Step 5: Solve for x
    x = 973,195,499,414.16/888,642.60
  6. Step 6: Final answer
    x = 1,095,148.38

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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.