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Finding the Fourth Proportional to 544,612.20, 817,064.10 and 485,854.80

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Solution

The fourth proportional to 544,612.20, 817,064.10 and 485,854.80 is: 728,912.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,612.20 : 817,064.10 = 485,854.80 : x
  2. Step 2: Convert to fraction form
    544,612.20/817,064.10 = 485,854.80/x
  3. Step 3: Cross multiply
    544,612.20x = 817,064.10 × 485,854.80
  4. Step 4: Simplify right side
    544,612.20x = 396,974,514,892.68
  5. Step 5: Solve for x
    x = 396,974,514,892.68/544,612.20
  6. Step 6: Final answer
    x = 728,912.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.