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Finding the Fourth Proportional to 999,660.80, 1,497,676.80 and 577,683.20

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Solution

The fourth proportional to 999,660.80, 1,497,676.80 and 577,683.20 is: 865,476.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,660.80 : 1,497,676.80 = 577,683.20 : x
  2. Step 2: Convert to fraction form
    999,660.80/1,497,676.80 = 577,683.20/x
  3. Step 3: Cross multiply
    999,660.80x = 1,497,676.80 × 577,683.20
  4. Step 4: Simplify right side
    999,660.80x = 865,182,726,389.76
  5. Step 5: Solve for x
    x = 865,182,726,389.76/999,660.80
  6. Step 6: Final answer
    x = 865,476.30

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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.