Home / 1,245,694.40-1,868,541.60-404,331.20

Finding the Fourth Proportional to 1,245,694.40, 1,868,541.60 and 404,331.20

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Solution

The fourth proportional to 1,245,694.40, 1,868,541.60 and 404,331.20 is: 606,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,694.40 : 1,868,541.60 = 404,331.20 : x
  2. Step 2: Convert to fraction form
    1,245,694.40/1,868,541.60 = 404,331.20/x
  3. Step 3: Cross multiply
    1,245,694.40x = 1,868,541.60 × 404,331.20
  4. Step 4: Simplify right side
    1,245,694.40x = 755,509,667,377.92
  5. Step 5: Solve for x
    x = 755,509,667,377.92/1,245,694.40
  6. Step 6: Final answer
    x = 606,496.80

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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.