Home / 677,311.40-1,016,399.10-322,725.80

Finding the Fourth Proportional to 677,311.40, 1,016,399.10 and 322,725.80

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Solution

The fourth proportional to 677,311.40, 1,016,399.10 and 322,725.80 is: 484,294.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,311.40 : 1,016,399.10 = 322,725.80 : x
  2. Step 2: Convert to fraction form
    677,311.40/1,016,399.10 = 322,725.80/x
  3. Step 3: Cross multiply
    677,311.40x = 1,016,399.10 × 322,725.80
  4. Step 4: Simplify right side
    677,311.40x = 328,018,212,666.78
  5. Step 5: Solve for x
    x = 328,018,212,666.78/677,311.40
  6. Step 6: Final answer
    x = 484,294.54

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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.