Home / 865,488.88-1,298,273.40-266,476.88

Finding the Fourth Proportional to 865,488.88, 1,298,273.40 and 266,476.88

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Solution

The fourth proportional to 865,488.88, 1,298,273.40 and 266,476.88 is: 399,727.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,488.88 : 1,298,273.40 = 266,476.88 : x
  2. Step 2: Convert to fraction form
    865,488.88/1,298,273.40 = 266,476.88/x
  3. Step 3: Cross multiply
    865,488.88x = 1,298,273.40 × 266,476.88
  4. Step 4: Simplify right side
    865,488.88x = 345,959,845,018.99
  5. Step 5: Solve for x
    x = 345,959,845,018.99/865,488.88
  6. Step 6: Final answer
    x = 399,727.66

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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.