Home / 1,431,851.32-1,975,901.70-787,233.16

Finding the Fourth Proportional to 1,431,851.32, 1,975,901.70 and 787,233.16

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Solution

The fourth proportional to 1,431,851.32, 1,975,901.70 and 787,233.16 is: 1,086,352.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,851.32 : 1,975,901.70 = 787,233.16 : x
  2. Step 2: Convert to fraction form
    1,431,851.32/1,975,901.70 = 787,233.16/x
  3. Step 3: Cross multiply
    1,431,851.32x = 1,975,901.70 × 787,233.16
  4. Step 4: Simplify right side
    1,431,851.32x = 1,555,495,339,140.37
  5. Step 5: Solve for x
    x = 1,555,495,339,140.37/1,431,851.32
  6. Step 6: Final answer
    x = 1,086,352.55

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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.