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Finding the Fourth Proportional to 536,877.87, 803,564.43 and 394,685.47

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Solution

The fourth proportional to 536,877.87, 803,564.43 and 394,685.47 is: 590,739.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,877.87 : 803,564.43 = 394,685.47 : x
  2. Step 2: Convert to fraction form
    536,877.87/803,564.43 = 394,685.47/x
  3. Step 3: Cross multiply
    536,877.87x = 803,564.43 × 394,685.47
  4. Step 4: Simplify right side
    536,877.87x = 317,155,204,729.83
  5. Step 5: Solve for x
    x = 317,155,204,729.83/536,877.87
  6. Step 6: Final answer
    x = 590,739.95

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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.