Home / 1,199,620.80-1,799,143.20-693,086.40

Finding the Fourth Proportional to 1,199,620.80, 1,799,143.20 and 693,086.40

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Solution

The fourth proportional to 1,199,620.80, 1,799,143.20 and 693,086.40 is: 1,039,463.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,620.80 : 1,799,143.20 = 693,086.40 : x
  2. Step 2: Convert to fraction form
    1,199,620.80/1,799,143.20 = 693,086.40/x
  3. Step 3: Cross multiply
    1,199,620.80x = 1,799,143.20 × 693,086.40
  4. Step 4: Simplify right side
    1,199,620.80x = 1,246,961,683,572.48
  5. Step 5: Solve for x
    x = 1,246,961,683,572.48/1,199,620.80
  6. Step 6: Final answer
    x = 1,039,463.21

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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.