Home / 715,568.31-987,073.09-446,829.75

Finding the Fourth Proportional to 715,568.31, 987,073.09 and 446,829.75

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Solution

The fourth proportional to 715,568.31, 987,073.09 and 446,829.75 is: 616,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,568.31 : 987,073.09 = 446,829.75 : x
  2. Step 2: Convert to fraction form
    715,568.31/987,073.09 = 446,829.75/x
  3. Step 3: Cross multiply
    715,568.31x = 987,073.09 × 446,829.75
  4. Step 4: Simplify right side
    715,568.31x = 441,053,620,919.35
  5. Step 5: Solve for x
    x = 441,053,620,919.35/715,568.31
  6. Step 6: Final answer
    x = 616,368.30

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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.