Home / 1,368,967.80-2,053,743.30-422,434.20

Finding the Fourth Proportional to 1,368,967.80, 2,053,743.30 and 422,434.20

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Solution

The fourth proportional to 1,368,967.80, 2,053,743.30 and 422,434.20 is: 633,741.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,967.80 : 2,053,743.30 = 422,434.20 : x
  2. Step 2: Convert to fraction form
    1,368,967.80/2,053,743.30 = 422,434.20/x
  3. Step 3: Cross multiply
    1,368,967.80x = 2,053,743.30 × 422,434.20
  4. Step 4: Simplify right side
    1,368,967.80x = 867,571,407,940.86
  5. Step 5: Solve for x
    x = 867,571,407,940.86/1,368,967.80
  6. Step 6: Final answer
    x = 633,741.28

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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.