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Finding the Fourth Proportional to 654,382.11, 903,034.26 and 363,987.39

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Solution

The fourth proportional to 654,382.11, 903,034.26 and 363,987.39 is: 502,295.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,382.11 : 903,034.26 = 363,987.39 : x
  2. Step 2: Convert to fraction form
    654,382.11/903,034.26 = 363,987.39/x
  3. Step 3: Cross multiply
    654,382.11x = 903,034.26 × 363,987.39
  4. Step 4: Simplify right side
    654,382.11x = 328,693,083,377.98
  5. Step 5: Solve for x
    x = 328,693,083,377.98/654,382.11
  6. Step 6: Final answer
    x = 502,295.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.