Home / 727,437.80-1,091,156.70-664,452.20

Finding the Fourth Proportional to 727,437.80, 1,091,156.70 and 664,452.20

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Solution

The fourth proportional to 727,437.80, 1,091,156.70 and 664,452.20 is: 996,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,437.80 : 1,091,156.70 = 664,452.20 : x
  2. Step 2: Convert to fraction form
    727,437.80/1,091,156.70 = 664,452.20/x
  3. Step 3: Cross multiply
    727,437.80x = 1,091,156.70 × 664,452.20
  4. Step 4: Simplify right side
    727,437.80x = 725,021,469,859.74
  5. Step 5: Solve for x
    x = 725,021,469,859.74/727,437.80
  6. Step 6: Final answer
    x = 996,678.30

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Double scale
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1.5x scale

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.