Home / 941,520.20-1,412,280.30-310,281.80

Finding the Fourth Proportional to 941,520.20, 1,412,280.30 and 310,281.80

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Solution

The fourth proportional to 941,520.20, 1,412,280.30 and 310,281.80 is: 465,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,520.20 : 1,412,280.30 = 310,281.80 : x
  2. Step 2: Convert to fraction form
    941,520.20/1,412,280.30 = 310,281.80/x
  3. Step 3: Cross multiply
    941,520.20x = 1,412,280.30 × 310,281.80
  4. Step 4: Simplify right side
    941,520.20x = 438,204,873,588.54
  5. Step 5: Solve for x
    x = 438,204,873,588.54/941,520.20
  6. Step 6: Final answer
    x = 465,422.70

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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.