Home / 861,966.72-1,292,950.80-270,990.72

Finding the Fourth Proportional to 861,966.72, 1,292,950.80 and 270,990.72

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Solution

The fourth proportional to 861,966.72, 1,292,950.80 and 270,990.72 is: 406,486.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,966.72 : 1,292,950.80 = 270,990.72 : x
  2. Step 2: Convert to fraction form
    861,966.72/1,292,950.80 = 270,990.72/x
  3. Step 3: Cross multiply
    861,966.72x = 1,292,950.80 × 270,990.72
  4. Step 4: Simplify right side
    861,966.72x = 350,377,668,216.58
  5. Step 5: Solve for x
    x = 350,377,668,216.58/861,966.72
  6. Step 6: Final answer
    x = 406,486.31

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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.