Home / 616,318.92-922,900.02-426,516.48

Finding the Fourth Proportional to 616,318.92, 922,900.02 and 426,516.48

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Solution

The fourth proportional to 616,318.92, 922,900.02 and 426,516.48 is: 638,682.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,318.92 : 922,900.02 = 426,516.48 : x
  2. Step 2: Convert to fraction form
    616,318.92/922,900.02 = 426,516.48/x
  3. Step 3: Cross multiply
    616,318.92x = 922,900.02 × 426,516.48
  4. Step 4: Simplify right side
    616,318.92x = 393,632,067,922.33
  5. Step 5: Solve for x
    x = 393,632,067,922.33/616,318.92
  6. Step 6: Final answer
    x = 638,682.43

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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.