Home / 677,326.40-1,016,421.60-322,740.80

Finding the Fourth Proportional to 677,326.40, 1,016,421.60 and 322,740.80

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Solution

The fourth proportional to 677,326.40, 1,016,421.60 and 322,740.80 is: 484,317.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,326.40 : 1,016,421.60 = 322,740.80 : x
  2. Step 2: Convert to fraction form
    677,326.40/1,016,421.60 = 322,740.80/x
  3. Step 3: Cross multiply
    677,326.40x = 1,016,421.60 × 322,740.80
  4. Step 4: Simplify right side
    677,326.40x = 328,040,720,321.28
  5. Step 5: Solve for x
    x = 328,040,720,321.28/677,326.40
  6. Step 6: Final answer
    x = 484,317.04

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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.