Home / 715,458.12-986,921.08-446,719.56

Finding the Fourth Proportional to 715,458.12, 986,921.08 and 446,719.56

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Solution

The fourth proportional to 715,458.12, 986,921.08 and 446,719.56 is: 616,216.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,458.12 : 986,921.08 = 446,719.56 : x
  2. Step 2: Convert to fraction form
    715,458.12/986,921.08 = 446,719.56/x
  3. Step 3: Cross multiply
    715,458.12x = 986,921.08 × 446,719.56
  4. Step 4: Simplify right side
    715,458.12x = 440,876,950,612.33
  5. Step 5: Solve for x
    x = 440,876,950,612.33/715,458.12
  6. Step 6: Final answer
    x = 616,216.29

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1.5x scale

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.