Home / 741,641.20-1,112,461.80-664,658.80

Finding the Fourth Proportional to 741,641.20, 1,112,461.80 and 664,658.80

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Solution

The fourth proportional to 741,641.20, 1,112,461.80 and 664,658.80 is: 996,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,641.20 : 1,112,461.80 = 664,658.80 : x
  2. Step 2: Convert to fraction form
    741,641.20/1,112,461.80 = 664,658.80/x
  3. Step 3: Cross multiply
    741,641.20x = 1,112,461.80 × 664,658.80
  4. Step 4: Simplify right side
    741,641.20x = 739,407,525,033.84
  5. Step 5: Solve for x
    x = 739,407,525,033.84/741,641.20
  6. Step 6: Final answer
    x = 996,988.20

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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.