Home / 1,008,205.80-1,512,308.70-298,240.80

Finding the Fourth Proportional to 1,008,205.80, 1,512,308.70 and 298,240.80

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Solution

The fourth proportional to 1,008,205.80, 1,512,308.70 and 298,240.80 is: 447,361.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,205.80 : 1,512,308.70 = 298,240.80 : x
  2. Step 2: Convert to fraction form
    1,008,205.80/1,512,308.70 = 298,240.80/x
  3. Step 3: Cross multiply
    1,008,205.80x = 1,512,308.70 × 298,240.80
  4. Step 4: Simplify right side
    1,008,205.80x = 451,032,156,534.96
  5. Step 5: Solve for x
    x = 451,032,156,534.96/1,008,205.80
  6. Step 6: Final answer
    x = 447,361.20

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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.