Home / 641,363.76-962,035.56-220,643.28

Finding the Fourth Proportional to 641,363.76, 962,035.56 and 220,643.28

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Solution

The fourth proportional to 641,363.76, 962,035.56 and 220,643.28 is: 330,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,363.76 : 962,035.56 = 220,643.28 : x
  2. Step 2: Convert to fraction form
    641,363.76/962,035.56 = 220,643.28/x
  3. Step 3: Cross multiply
    641,363.76x = 962,035.56 × 220,643.28
  4. Step 4: Simplify right side
    641,363.76x = 212,266,681,435.04
  5. Step 5: Solve for x
    x = 212,266,681,435.04/641,363.76
  6. Step 6: Final answer
    x = 330,961.45

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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.