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Finding the Fourth Proportional to 545,664.78, 814,229.66 and 488,926.92

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Solution

The fourth proportional to 545,664.78, 814,229.66 and 488,926.92 is: 729,566.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,664.78 : 814,229.66 = 488,926.92 : x
  2. Step 2: Convert to fraction form
    545,664.78/814,229.66 = 488,926.92/x
  3. Step 3: Cross multiply
    545,664.78x = 814,229.66 × 488,926.92
  4. Step 4: Simplify right side
    545,664.78x = 398,098,797,391.81
  5. Step 5: Solve for x
    x = 398,098,797,391.81/545,664.78
  6. Step 6: Final answer
    x = 729,566.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.