Home / 1,431,869.32-1,975,926.52-787,251.16

Finding the Fourth Proportional to 1,431,869.32, 1,975,926.52 and 787,251.16

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Solution

The fourth proportional to 1,431,869.32, 1,975,926.52 and 787,251.16 is: 1,086,377.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,869.32 : 1,975,926.52 = 787,251.16 : x
  2. Step 2: Convert to fraction form
    1,431,869.32/1,975,926.52 = 787,251.16/x
  3. Step 3: Cross multiply
    1,431,869.32x = 1,975,926.52 × 787,251.16
  4. Step 4: Simplify right side
    1,431,869.32x = 1,555,550,444,944.76
  5. Step 5: Solve for x
    x = 1,555,550,444,944.76/1,431,869.32
  6. Step 6: Final answer
    x = 1,086,377.38

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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.