Home / 865,731.20-1,298,738.95-266,679.23

Finding the Fourth Proportional to 865,731.20, 1,298,738.95 and 266,679.23

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Solution

The fourth proportional to 865,731.20, 1,298,738.95 and 266,679.23 is: 400,062.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,731.20 : 1,298,738.95 = 266,679.23 : x
  2. Step 2: Convert to fraction form
    865,731.20/1,298,738.95 = 266,679.23/x
  3. Step 3: Cross multiply
    865,731.20x = 1,298,738.95 × 266,679.23
  4. Step 4: Simplify right side
    865,731.20x = 346,346,695,996.62
  5. Step 5: Solve for x
    x = 346,346,695,996.62/865,731.20
  6. Step 6: Final answer
    x = 400,062.63

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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.