Home / 1,245,649.20-1,868,473.80-1,222,029.60

Finding the Fourth Proportional to 1,245,649.20, 1,868,473.80 and 1,222,029.60

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Solution

The fourth proportional to 1,245,649.20, 1,868,473.80 and 1,222,029.60 is: 1,833,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,649.20 : 1,868,473.80 = 1,222,029.60 : x
  2. Step 2: Convert to fraction form
    1,245,649.20/1,868,473.80 = 1,222,029.60/x
  3. Step 3: Cross multiply
    1,245,649.20x = 1,868,473.80 × 1,222,029.60
  4. Step 4: Simplify right side
    1,245,649.20x = 2,283,330,290,424.48
  5. Step 5: Solve for x
    x = 2,283,330,290,424.48/1,245,649.20
  6. Step 6: Final answer
    x = 1,833,044.40

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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.