Home / 1,368,069.20-2,052,103.80-515,139.20

Finding the Fourth Proportional to 1,368,069.20, 2,052,103.80 and 515,139.20

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Solution

The fourth proportional to 1,368,069.20, 2,052,103.80 and 515,139.20 is: 772,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,069.20 : 2,052,103.80 = 515,139.20 : x
  2. Step 2: Convert to fraction form
    1,368,069.20/2,052,103.80 = 515,139.20/x
  3. Step 3: Cross multiply
    1,368,069.20x = 2,052,103.80 × 515,139.20
  4. Step 4: Simplify right side
    1,368,069.20x = 1,057,119,109,848.96
  5. Step 5: Solve for x
    x = 1,057,119,109,848.96/1,368,069.20
  6. Step 6: Final answer
    x = 772,708.80

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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.