Home / 912,076.80-1,368,115.20-247,228.80

Finding the Fourth Proportional to 912,076.80, 1,368,115.20 and 247,228.80

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Solution

The fourth proportional to 912,076.80, 1,368,115.20 and 247,228.80 is: 370,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,076.80 : 1,368,115.20 = 247,228.80 : x
  2. Step 2: Convert to fraction form
    912,076.80/1,368,115.20 = 247,228.80/x
  3. Step 3: Cross multiply
    912,076.80x = 1,368,115.20 × 247,228.80
  4. Step 4: Simplify right side
    912,076.80x = 338,237,479,157.76
  5. Step 5: Solve for x
    x = 338,237,479,157.76/912,076.80
  6. Step 6: Final answer
    x = 370,843.20

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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.