Home / 3,120,747.30-4,678,528.95-1,325,009.70

Finding the Fourth Proportional to 3,120,747.30, 4,678,528.95 and 1,325,009.70

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Solution

The fourth proportional to 3,120,747.30, 4,678,528.95 and 1,325,009.70 is: 1,986,414.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,747.30 : 4,678,528.95 = 1,325,009.70 : x
  2. Step 2: Convert to fraction form
    3,120,747.30/4,678,528.95 = 1,325,009.70/x
  3. Step 3: Cross multiply
    3,120,747.30x = 4,678,528.95 × 1,325,009.70
  4. Step 4: Simplify right side
    3,120,747.30x = 6,199,096,240,480.82
  5. Step 5: Solve for x
    x = 6,199,096,240,480.82/3,120,747.30
  6. Step 6: Final answer
    x = 1,986,414.04

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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.