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Finding the Fourth Proportional to 750,993.76, 1,036,331.76 and 428,691.04

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Solution

The fourth proportional to 750,993.76, 1,036,331.76 and 428,691.04 is: 591,571.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,993.76 : 1,036,331.76 = 428,691.04 : x
  2. Step 2: Convert to fraction form
    750,993.76/1,036,331.76 = 428,691.04/x
  3. Step 3: Cross multiply
    750,993.76x = 1,036,331.76 × 428,691.04
  4. Step 4: Simplify right side
    750,993.76x = 444,266,139,979.43
  5. Step 5: Solve for x
    x = 444,266,139,979.43/750,993.76
  6. Step 6: Final answer
    x = 591,571.01

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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.