Home / 3,191,422.20-4,403,560.02-1,902,382.92

Finding the Fourth Proportional to 3,191,422.20, 4,403,560.02 and 1,902,382.92

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Solution

The fourth proportional to 3,191,422.20, 4,403,560.02 and 1,902,382.92 is: 2,624,929.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191,422.20 : 4,403,560.02 = 1,902,382.92 : x
  2. Step 2: Convert to fraction form
    3,191,422.20/4,403,560.02 = 1,902,382.92/x
  3. Step 3: Cross multiply
    3,191,422.20x = 4,403,560.02 × 1,902,382.92
  4. Step 4: Simplify right side
    3,191,422.20x = 8,377,257,369,242.86
  5. Step 5: Solve for x
    x = 8,377,257,369,242.86/3,191,422.20
  6. Step 6: Final answer
    x = 2,624,929.21

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1.5x scale

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.