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Finding the Fourth Proportional to 485,797.92, 670,402.31 and 270,951.90

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Solution

The fourth proportional to 485,797.92, 670,402.31 and 270,951.90 is: 373,914.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,797.92 : 670,402.31 = 270,951.90 : x
  2. Step 2: Convert to fraction form
    485,797.92/670,402.31 = 270,951.90/x
  3. Step 3: Cross multiply
    485,797.92x = 670,402.31 × 270,951.90
  4. Step 4: Simplify right side
    485,797.92x = 181,646,779,658.89
  5. Step 5: Solve for x
    x = 181,646,779,658.89/485,797.92
  6. Step 6: Final answer
    x = 373,914.28

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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.