Home / 1,190,909.68-1,643,401.80-674,653.04

Finding the Fourth Proportional to 1,190,909.68, 1,643,401.80 and 674,653.04

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Solution

The fourth proportional to 1,190,909.68, 1,643,401.80 and 674,653.04 is: 930,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,909.68 : 1,643,401.80 = 674,653.04 : x
  2. Step 2: Convert to fraction form
    1,190,909.68/1,643,401.80 = 674,653.04/x
  3. Step 3: Cross multiply
    1,190,909.68x = 1,643,401.80 × 674,653.04
  4. Step 4: Simplify right side
    1,190,909.68x = 1,108,726,025,164.40
  5. Step 5: Solve for x
    x = 1,108,726,025,164.40/1,190,909.68
  6. Step 6: Final answer
    x = 930,990.85

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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.