Home / 3,115,079.40-4,672,764.90-985,330.20

Finding the Fourth Proportional to 3,115,079.40, 4,672,764.90 and 985,330.20

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Solution

The fourth proportional to 3,115,079.40, 4,672,764.90 and 985,330.20 is: 1,478,041.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,079.40 : 4,672,764.90 = 985,330.20 : x
  2. Step 2: Convert to fraction form
    3,115,079.40/4,672,764.90 = 985,330.20/x
  3. Step 3: Cross multiply
    3,115,079.40x = 4,672,764.90 × 985,330.20
  4. Step 4: Simplify right side
    3,115,079.40x = 4,604,216,373,469.98
  5. Step 5: Solve for x
    x = 4,604,216,373,469.98/3,115,079.40
  6. Step 6: Final answer
    x = 1,478,041.42

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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.