Home / 1,431,872.32-1,975,930.66-787,254.16

Finding the Fourth Proportional to 1,431,872.32, 1,975,930.66 and 787,254.16

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Solution

The fourth proportional to 1,431,872.32, 1,975,930.66 and 787,254.16 is: 1,086,381.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,872.32 : 1,975,930.66 = 787,254.16 : x
  2. Step 2: Convert to fraction form
    1,431,872.32/1,975,930.66 = 787,254.16/x
  3. Step 3: Cross multiply
    1,431,872.32x = 1,975,930.66 × 787,254.16
  4. Step 4: Simplify right side
    1,431,872.32x = 1,555,559,631,956.55
  5. Step 5: Solve for x
    x = 1,555,559,631,956.55/1,431,872.32
  6. Step 6: Final answer
    x = 1,086,381.52

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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.