Home / 3,115,178.40-4,672,913.40-985,429.20

Finding the Fourth Proportional to 3,115,178.40, 4,672,913.40 and 985,429.20

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Solution

The fourth proportional to 3,115,178.40, 4,672,913.40 and 985,429.20 is: 1,478,189.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,178.40 : 4,672,913.40 = 985,429.20 : x
  2. Step 2: Convert to fraction form
    3,115,178.40/4,672,913.40 = 985,429.20/x
  3. Step 3: Cross multiply
    3,115,178.40x = 4,672,913.40 × 985,429.20
  4. Step 4: Simplify right side
    3,115,178.40x = 4,604,825,313,431.28
  5. Step 5: Solve for x
    x = 4,604,825,313,431.28/3,115,178.40
  6. Step 6: Final answer
    x = 1,478,189.92

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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.