Home / 1,396,359.80-2,094,539.70-988,921.70

Finding the Fourth Proportional to 1,396,359.80, 2,094,539.70 and 988,921.70

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Solution

The fourth proportional to 1,396,359.80, 2,094,539.70 and 988,921.70 is: 1,483,382.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,359.80 : 2,094,539.70 = 988,921.70 : x
  2. Step 2: Convert to fraction form
    1,396,359.80/2,094,539.70 = 988,921.70/x
  3. Step 3: Cross multiply
    1,396,359.80x = 2,094,539.70 × 988,921.70
  4. Step 4: Simplify right side
    1,396,359.80x = 2,071,335,760,841.49
  5. Step 5: Solve for x
    x = 2,071,335,760,841.49/1,396,359.80
  6. Step 6: Final answer
    x = 1,483,382.55

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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.