Home / 1,431,847.62-1,975,957.16-787,309.34

Finding the Fourth Proportional to 1,431,847.62, 1,975,957.16 and 787,309.34

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Solution

The fourth proportional to 1,431,847.62, 1,975,957.16 and 787,309.34 is: 1,086,490.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,847.62 : 1,975,957.16 = 787,309.34 : x
  2. Step 2: Convert to fraction form
    1,431,847.62/1,975,957.16 = 787,309.34/x
  3. Step 3: Cross multiply
    1,431,847.62x = 1,975,957.16 × 787,309.34
  4. Step 4: Simplify right side
    1,431,847.62x = 1,555,689,513,691.54
  5. Step 5: Solve for x
    x = 1,555,689,513,691.54/1,431,847.62
  6. Step 6: Final answer
    x = 1,086,490.97

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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.