Home / 819,870.66-1,229,565.96-314,393.94

Finding the Fourth Proportional to 819,870.66, 1,229,565.96 and 314,393.94

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Solution

The fourth proportional to 819,870.66, 1,229,565.96 and 314,393.94 is: 471,498.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,870.66 : 1,229,565.96 = 314,393.94 : x
  2. Step 2: Convert to fraction form
    819,870.66/1,229,565.96 = 314,393.94/x
  3. Step 3: Cross multiply
    819,870.66x = 1,229,565.96 × 314,393.94
  4. Step 4: Simplify right side
    819,870.66x = 386,568,086,654.28
  5. Step 5: Solve for x
    x = 386,568,086,654.28/819,870.66
  6. Step 6: Final answer
    x = 471,498.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.