Home / 1,245,642.40-1,868,924.40-404,221.60

Finding the Fourth Proportional to 1,245,642.40, 1,868,924.40 and 404,221.60

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Solution

The fourth proportional to 1,245,642.40, 1,868,924.40 and 404,221.60 is: 606,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,642.40 : 1,868,924.40 = 404,221.60 : x
  2. Step 2: Convert to fraction form
    1,245,642.40/1,868,924.40 = 404,221.60/x
  3. Step 3: Cross multiply
    1,245,642.40x = 1,868,924.40 × 404,221.60
  4. Step 4: Simplify right side
    1,245,642.40x = 755,459,611,247.04
  5. Step 5: Solve for x
    x = 755,459,611,247.04/1,245,642.40
  6. Step 6: Final answer
    x = 606,481.93

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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.