Home / 644,694.20-967,041.30-325,829.60

Finding the Fourth Proportional to 644,694.20, 967,041.30 and 325,829.60

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Solution

The fourth proportional to 644,694.20, 967,041.30 and 325,829.60 is: 488,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,694.20 : 967,041.30 = 325,829.60 : x
  2. Step 2: Convert to fraction form
    644,694.20/967,041.30 = 325,829.60/x
  3. Step 3: Cross multiply
    644,694.20x = 967,041.30 × 325,829.60
  4. Step 4: Simplify right side
    644,694.20x = 315,090,679,962.48
  5. Step 5: Solve for x
    x = 315,090,679,962.48/644,694.20
  6. Step 6: Final answer
    x = 488,744.40

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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.