Home / 687,797.20-1,029,946.20-656,304.40

Finding the Fourth Proportional to 687,797.20, 1,029,946.20 and 656,304.40

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Solution

The fourth proportional to 687,797.20, 1,029,946.20 and 656,304.40 is: 982,787.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,797.20 : 1,029,946.20 = 656,304.40 : x
  2. Step 2: Convert to fraction form
    687,797.20/1,029,946.20 = 656,304.40/x
  3. Step 3: Cross multiply
    687,797.20x = 1,029,946.20 × 656,304.40
  4. Step 4: Simplify right side
    687,797.20x = 675,958,222,823.28
  5. Step 5: Solve for x
    x = 675,958,222,823.28/687,797.20
  6. Step 6: Final answer
    x = 982,787.11

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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.