Home / 1,431,891.54-1,976,017.68-787,353.30

Finding the Fourth Proportional to 1,431,891.54, 1,976,017.68 and 787,353.30

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Solution

The fourth proportional to 1,431,891.54, 1,976,017.68 and 787,353.30 is: 1,086,551.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,891.54 : 1,976,017.68 = 787,353.30 : x
  2. Step 2: Convert to fraction form
    1,431,891.54/1,976,017.68 = 787,353.30/x
  3. Step 3: Cross multiply
    1,431,891.54x = 1,976,017.68 × 787,353.30
  4. Step 4: Simplify right side
    1,431,891.54x = 1,555,824,041,206.34
  5. Step 5: Solve for x
    x = 1,555,824,041,206.34/1,431,891.54
  6. Step 6: Final answer
    x = 1,086,551.60

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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.