Home / 1,245,814.40-1,868,721.60-404,366.15

Finding the Fourth Proportional to 1,245,814.40, 1,868,721.60 and 404,366.15

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Solution

The fourth proportional to 1,245,814.40, 1,868,721.60 and 404,366.15 is: 606,549.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,814.40 : 1,868,721.60 = 404,366.15 : x
  2. Step 2: Convert to fraction form
    1,245,814.40/1,868,721.60 = 404,366.15/x
  3. Step 3: Cross multiply
    1,245,814.40x = 1,868,721.60 × 404,366.15
  4. Step 4: Simplify right side
    1,245,814.40x = 755,647,758,813.84
  5. Step 5: Solve for x
    x = 755,647,758,813.84/1,245,814.40
  6. Step 6: Final answer
    x = 606,549.23

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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.