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Finding the Fourth Proportional to 1,791,928.80, 2,687,920.52 and 654,922.08

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Solution

The fourth proportional to 1,791,928.80, 2,687,920.52 and 654,922.08 is: 982,393.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,928.80 : 2,687,920.52 = 654,922.08 : x
  2. Step 2: Convert to fraction form
    1,791,928.80/2,687,920.52 = 654,922.08/x
  3. Step 3: Cross multiply
    1,791,928.80x = 2,687,920.52 × 654,922.08
  4. Step 4: Simplify right side
    1,791,928.80x = 1,760,378,494,558.47
  5. Step 5: Solve for x
    x = 1,760,378,494,558.47/1,791,928.80
  6. Step 6: Final answer
    x = 982,393.10

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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.