Home / 1,245,643.20-1,868,464.80-404,194.95

Finding the Fourth Proportional to 1,245,643.20, 1,868,464.80 and 404,194.95

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Solution

The fourth proportional to 1,245,643.20, 1,868,464.80 and 404,194.95 is: 606,292.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,643.20 : 1,868,464.80 = 404,194.95 : x
  2. Step 2: Convert to fraction form
    1,245,643.20/1,868,464.80 = 404,194.95/x
  3. Step 3: Cross multiply
    1,245,643.20x = 1,868,464.80 × 404,194.95
  4. Step 4: Simplify right side
    1,245,643.20x = 755,224,036,412.76
  5. Step 5: Solve for x
    x = 755,224,036,412.76/1,245,643.20
  6. Step 6: Final answer
    x = 606,292.43

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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.