Home / 1,426,371.12-1,969,019.28-998,331.48

Finding the Fourth Proportional to 1,426,371.12, 1,969,019.28 and 998,331.48

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Solution

The fourth proportional to 1,426,371.12, 1,969,019.28 and 998,331.48 is: 1,378,136.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,371.12 : 1,969,019.28 = 998,331.48 : x
  2. Step 2: Convert to fraction form
    1,426,371.12/1,969,019.28 = 998,331.48/x
  3. Step 3: Cross multiply
    1,426,371.12x = 1,969,019.28 × 998,331.48
  4. Step 4: Simplify right side
    1,426,371.12x = 1,965,733,931,950.93
  5. Step 5: Solve for x
    x = 1,965,733,931,950.93/1,426,371.12
  6. Step 6: Final answer
    x = 1,378,136.38

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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.