Home / 1,187,960.88-1,782,119.13-429,979.70

Finding the Fourth Proportional to 1,187,960.88, 1,782,119.13 and 429,979.70

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Solution

The fourth proportional to 1,187,960.88, 1,782,119.13 and 429,979.70 is: 645,033.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,960.88 : 1,782,119.13 = 429,979.70 : x
  2. Step 2: Convert to fraction form
    1,187,960.88/1,782,119.13 = 429,979.70/x
  3. Step 3: Cross multiply
    1,187,960.88x = 1,782,119.13 × 429,979.70
  4. Step 4: Simplify right side
    1,187,960.88x = 766,275,039,971.07
  5. Step 5: Solve for x
    x = 766,275,039,971.07/1,187,960.88
  6. Step 6: Final answer
    x = 645,033.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.