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Finding the Fourth Proportional to 545,663.28, 814,227.42 and 488,925.42

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Solution

The fourth proportional to 545,663.28, 814,227.42 and 488,925.42 is: 729,564.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,663.28 : 814,227.42 = 488,925.42 : x
  2. Step 2: Convert to fraction form
    545,663.28/814,227.42 = 488,925.42/x
  3. Step 3: Cross multiply
    545,663.28x = 814,227.42 × 488,925.42
  4. Step 4: Simplify right side
    545,663.28x = 398,096,477,953.83
  5. Step 5: Solve for x
    x = 398,096,477,953.83/545,663.28
  6. Step 6: Final answer
    x = 729,564.35

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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.