Home / 1,331,422.80-1,997,134.20-432,893.85

Finding the Fourth Proportional to 1,331,422.80, 1,997,134.20 and 432,893.85

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Solution

The fourth proportional to 1,331,422.80, 1,997,134.20 and 432,893.85 is: 649,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,422.80 : 1,997,134.20 = 432,893.85 : x
  2. Step 2: Convert to fraction form
    1,331,422.80/1,997,134.20 = 432,893.85/x
  3. Step 3: Cross multiply
    1,331,422.80x = 1,997,134.20 × 432,893.85
  4. Step 4: Simplify right side
    1,331,422.80x = 864,547,112,804.67
  5. Step 5: Solve for x
    x = 864,547,112,804.67/1,331,422.80
  6. Step 6: Final answer
    x = 649,340.78

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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.