Home / 644,724.80-967,087.20-617,422.40

Finding the Fourth Proportional to 644,724.80, 967,087.20 and 617,422.40

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Solution

The fourth proportional to 644,724.80, 967,087.20 and 617,422.40 is: 926,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,724.80 : 967,087.20 = 617,422.40 : x
  2. Step 2: Convert to fraction form
    644,724.80/967,087.20 = 617,422.40/x
  3. Step 3: Cross multiply
    644,724.80x = 967,087.20 × 617,422.40
  4. Step 4: Simplify right side
    644,724.80x = 597,101,300,033.28
  5. Step 5: Solve for x
    x = 597,101,300,033.28/644,724.80
  6. Step 6: Final answer
    x = 926,133.60

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Double scale
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Similar ratio
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1.5x scale

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.