Home / 1,398,941.80-2,098,412.70-401,540.20

Finding the Fourth Proportional to 1,398,941.80, 2,098,412.70 and 401,540.20

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Solution

The fourth proportional to 1,398,941.80, 2,098,412.70 and 401,540.20 is: 602,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,941.80 : 2,098,412.70 = 401,540.20 : x
  2. Step 2: Convert to fraction form
    1,398,941.80/2,098,412.70 = 401,540.20/x
  3. Step 3: Cross multiply
    1,398,941.80x = 2,098,412.70 × 401,540.20
  4. Step 4: Simplify right side
    1,398,941.80x = 842,597,055,240.54
  5. Step 5: Solve for x
    x = 842,597,055,240.54/1,398,941.80
  6. Step 6: Final answer
    x = 602,310.30

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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.