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Finding the Fourth Proportional to 543,251.32, 749,650.48 and 328,509.79

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Solution

The fourth proportional to 543,251.32, 749,650.48 and 328,509.79 is: 453,321.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,251.32 : 749,650.48 = 328,509.79 : x
  2. Step 2: Convert to fraction form
    543,251.32/749,650.48 = 328,509.79/x
  3. Step 3: Cross multiply
    543,251.32x = 749,650.48 × 328,509.79
  4. Step 4: Simplify right side
    543,251.32x = 246,267,519,062.80
  5. Step 5: Solve for x
    x = 246,267,519,062.80/543,251.32
  6. Step 6: Final answer
    x = 453,321.53

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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.