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Finding the Fourth Proportional to 439,382.78, 606,341.66 and 248,389.46

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Solution

The fourth proportional to 439,382.78, 606,341.66 and 248,389.46 is: 342,773.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,382.78 : 606,341.66 = 248,389.46 : x
  2. Step 2: Convert to fraction form
    439,382.78/606,341.66 = 248,389.46/x
  3. Step 3: Cross multiply
    439,382.78x = 606,341.66 × 248,389.46
  4. Step 4: Simplify right side
    439,382.78x = 150,608,877,502.90
  5. Step 5: Solve for x
    x = 150,608,877,502.90/439,382.78
  6. Step 6: Final answer
    x = 342,773.74

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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.