Home / 3,115,945.80-4,674,356.10-985,807.80

Finding the Fourth Proportional to 3,115,945.80, 4,674,356.10 and 985,807.80

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Solution

The fourth proportional to 3,115,945.80, 4,674,356.10 and 985,807.80 is: 1,478,850.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,945.80 : 4,674,356.10 = 985,807.80 : x
  2. Step 2: Convert to fraction form
    3,115,945.80/4,674,356.10 = 985,807.80/x
  3. Step 3: Cross multiply
    3,115,945.80x = 4,674,356.10 × 985,807.80
  4. Step 4: Simplify right side
    3,115,945.80x = 4,608,016,703,357.58
  5. Step 5: Solve for x
    x = 4,608,016,703,357.58/3,115,945.80
  6. Step 6: Final answer
    x = 1,478,850.08

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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.