Home / 679,711.47-1,019,567.28-323,646

Finding the Fourth Proportional to 679,711.47, 1,019,567.28 and 323,646

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Solution

The fourth proportional to 679,711.47, 1,019,567.28 and 323,646 is: 485,469.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,711.47 : 1,019,567.28 = 323,646 : x
  2. Step 2: Convert to fraction form
    679,711.47/1,019,567.28 = 323,646/x
  3. Step 3: Cross multiply
    679,711.47x = 1,019,567.28 × 323,646
  4. Step 4: Simplify right side
    679,711.47x = 329,978,871,902.88
  5. Step 5: Solve for x
    x = 329,978,871,902.88/679,711.47
  6. Step 6: Final answer
    x = 485,469.04

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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.