Home / 781,443.36-1,171,368-307,936.80

Finding the Fourth Proportional to 781,443.36, 1,171,368 and 307,936.80

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Solution

The fourth proportional to 781,443.36, 1,171,368 and 307,936.80 is: 461,591.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,443.36 : 1,171,368 = 307,936.80 : x
  2. Step 2: Convert to fraction form
    781,443.36/1,171,368 = 307,936.80/x
  3. Step 3: Cross multiply
    781,443.36x = 1,171,368 × 307,936.80
  4. Step 4: Simplify right side
    781,443.36x = 360,707,313,542.40
  5. Step 5: Solve for x
    x = 360,707,313,542.40/781,443.36
  6. Step 6: Final answer
    x = 461,591.12

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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.