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Finding the Fourth Proportional to 888,296.60, 1,330,476.60 and 687,967.40

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Solution

The fourth proportional to 888,296.60, 1,330,476.60 and 687,967.40 is: 1,030,426.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,296.60 : 1,330,476.60 = 687,967.40 : x
  2. Step 2: Convert to fraction form
    888,296.60/1,330,476.60 = 687,967.40/x
  3. Step 3: Cross multiply
    888,296.60x = 1,330,476.60 × 687,967.40
  4. Step 4: Simplify right side
    888,296.60x = 915,324,527,262.84
  5. Step 5: Solve for x
    x = 915,324,527,262.84/888,296.60
  6. Step 6: Final answer
    x = 1,030,426.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.