Home / 643,511.20-964,975.20-244,019.20

Finding the Fourth Proportional to 643,511.20, 964,975.20 and 244,019.20

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Solution

The fourth proportional to 643,511.20, 964,975.20 and 244,019.20 is: 365,918.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,511.20 : 964,975.20 = 244,019.20 : x
  2. Step 2: Convert to fraction form
    643,511.20/964,975.20 = 244,019.20/x
  3. Step 3: Cross multiply
    643,511.20x = 964,975.20 × 244,019.20
  4. Step 4: Simplify right side
    643,511.20x = 235,472,476,323.84
  5. Step 5: Solve for x
    x = 235,472,476,323.84/643,511.20
  6. Step 6: Final answer
    x = 365,918.23

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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.