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Finding the Fourth Proportional to 543,146.88, 749,520.48 and 301,439.52

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Solution

The fourth proportional to 543,146.88, 749,520.48 and 301,439.52 is: 415,974.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,146.88 : 749,520.48 = 301,439.52 : x
  2. Step 2: Convert to fraction form
    543,146.88/749,520.48 = 301,439.52/x
  3. Step 3: Cross multiply
    543,146.88x = 749,520.48 × 301,439.52
  4. Step 4: Simplify right side
    543,146.88x = 225,935,093,721.37
  5. Step 5: Solve for x
    x = 225,935,093,721.37/543,146.88
  6. Step 6: Final answer
    x = 415,974.21

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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.