Home / 927,148.80-1,389,686.40-527,980.80

Finding the Fourth Proportional to 927,148.80, 1,389,686.40 and 527,980.80

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Solution

The fourth proportional to 927,148.80, 1,389,686.40 and 527,980.80 is: 791,380.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,148.80 : 1,389,686.40 = 527,980.80 : x
  2. Step 2: Convert to fraction form
    927,148.80/1,389,686.40 = 527,980.80/x
  3. Step 3: Cross multiply
    927,148.80x = 1,389,686.40 × 527,980.80
  4. Step 4: Simplify right side
    927,148.80x = 733,727,737,221.12
  5. Step 5: Solve for x
    x = 733,727,737,221.12/927,148.80
  6. Step 6: Final answer
    x = 791,380.78

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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.