Home / 438,727.32-605,447.71-257,442.27

Finding the Fourth Proportional to 438,727.32, 605,447.71 and 257,442.27

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Solution

The fourth proportional to 438,727.32, 605,447.71 and 257,442.27 is: 355,272.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,727.32 : 605,447.71 = 257,442.27 : x
  2. Step 2: Convert to fraction form
    438,727.32/605,447.71 = 257,442.27/x
  3. Step 3: Cross multiply
    438,727.32x = 605,447.71 × 257,442.27
  4. Step 4: Simplify right side
    438,727.32x = 155,867,832,828.70
  5. Step 5: Solve for x
    x = 155,867,832,828.70/438,727.32
  6. Step 6: Final answer
    x = 355,272.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.