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Finding the Fourth Proportional to 392,462.39, 541,603.77 and 220,417.59

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Solution

The fourth proportional to 392,462.39, 541,603.77 and 220,417.59 is: 304,179.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,462.39 : 541,603.77 = 220,417.59 : x
  2. Step 2: Convert to fraction form
    392,462.39/541,603.77 = 220,417.59/x
  3. Step 3: Cross multiply
    392,462.39x = 541,603.77 × 220,417.59
  4. Step 4: Simplify right side
    392,462.39x = 119,378,997,718.31
  5. Step 5: Solve for x
    x = 119,378,997,718.31/392,462.39
  6. Step 6: Final answer
    x = 304,179.46

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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.