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Finding the Fourth Proportional to 485,799.92, 670,405.07 and 270,953.90

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Solution

The fourth proportional to 485,799.92, 670,405.07 and 270,953.90 is: 373,917.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,799.92 : 670,405.07 = 270,953.90 : x
  2. Step 2: Convert to fraction form
    485,799.92/670,405.07 = 270,953.90/x
  3. Step 3: Cross multiply
    485,799.92x = 670,405.07 × 270,953.90
  4. Step 4: Simplify right side
    485,799.92x = 181,648,868,296.27
  5. Step 5: Solve for x
    x = 181,648,868,296.27/485,799.92
  6. Step 6: Final answer
    x = 373,917.04

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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.