Home / 1,431,747.56-1,975,825.20-787,172.24

Finding the Fourth Proportional to 1,431,747.56, 1,975,825.20 and 787,172.24

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Solution

The fourth proportional to 1,431,747.56, 1,975,825.20 and 787,172.24 is: 1,086,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,747.56 : 1,975,825.20 = 787,172.24 : x
  2. Step 2: Convert to fraction form
    1,431,747.56/1,975,825.20 = 787,172.24/x
  3. Step 3: Cross multiply
    1,431,747.56x = 1,975,825.20 × 787,172.24
  4. Step 4: Simplify right side
    1,431,747.56x = 1,555,314,748,532.45
  5. Step 5: Solve for x
    x = 1,555,314,748,532.45/1,431,747.56
  6. Step 6: Final answer
    x = 1,086,305.15

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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.