Home / 618,470.78-926,913.38-538,175.07

Finding the Fourth Proportional to 618,470.78, 926,913.38 and 538,175.07

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Solution

The fourth proportional to 618,470.78, 926,913.38 and 538,175.07 is: 806,572.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,470.78 : 926,913.38 = 538,175.07 : x
  2. Step 2: Convert to fraction form
    618,470.78/926,913.38 = 538,175.07/x
  3. Step 3: Cross multiply
    618,470.78x = 926,913.38 × 538,175.07
  4. Step 4: Simplify right side
    618,470.78x = 498,841,670,474.56
  5. Step 5: Solve for x
    x = 498,841,670,474.56/618,470.78
  6. Step 6: Final answer
    x = 806,572.74

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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.