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Finding the Fourth Proportional to 541,478.17, 747,005.32 and 326,498.80

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Solution

The fourth proportional to 541,478.17, 747,005.32 and 326,498.80 is: 450,426.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,478.17 : 747,005.32 = 326,498.80 : x
  2. Step 2: Convert to fraction form
    541,478.17/747,005.32 = 326,498.80/x
  3. Step 3: Cross multiply
    541,478.17x = 747,005.32 × 326,498.80
  4. Step 4: Simplify right side
    541,478.17x = 243,896,340,573.62
  5. Step 5: Solve for x
    x = 243,896,340,573.62/541,478.17
  6. Step 6: Final answer
    x = 450,426.91

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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.