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Finding the Fourth Proportional to 542,021.71, 809,165.72 and 506,001.73

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Solution

The fourth proportional to 542,021.71, 809,165.72 and 506,001.73 is: 755,392.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,021.71 : 809,165.72 = 506,001.73 : x
  2. Step 2: Convert to fraction form
    542,021.71/809,165.72 = 506,001.73/x
  3. Step 3: Cross multiply
    542,021.71x = 809,165.72 × 506,001.73
  4. Step 4: Simplify right side
    542,021.71x = 409,439,254,176.70
  5. Step 5: Solve for x
    x = 409,439,254,176.70/542,021.71
  6. Step 6: Final answer
    x = 755,392.72

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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.