Home / 715,455.12-986,916.92-446,716.56

Finding the Fourth Proportional to 715,455.12, 986,916.92 and 446,716.56

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Solution

The fourth proportional to 715,455.12, 986,916.92 and 446,716.56 is: 616,212.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,455.12 : 986,916.92 = 446,716.56 : x
  2. Step 2: Convert to fraction form
    715,455.12/986,916.92 = 446,716.56/x
  3. Step 3: Cross multiply
    715,455.12x = 986,916.92 × 446,716.56
  4. Step 4: Simplify right side
    715,455.12x = 440,872,131,508.20
  5. Step 5: Solve for x
    x = 440,872,131,508.20/715,455.12
  6. Step 6: Final answer
    x = 616,212.14

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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.