Home / 2,020,665.12-2,788,504.08-1,115,247.20

Finding the Fourth Proportional to 2,020,665.12, 2,788,504.08 and 1,115,247.20

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Solution

The fourth proportional to 2,020,665.12, 2,788,504.08 and 1,115,247.20 is: 1,539,033.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020,665.12 : 2,788,504.08 = 1,115,247.20 : x
  2. Step 2: Convert to fraction form
    2,020,665.12/2,788,504.08 = 1,115,247.20/x
  3. Step 3: Cross multiply
    2,020,665.12x = 2,788,504.08 × 1,115,247.20
  4. Step 4: Simplify right side
    2,020,665.12x = 3,109,871,367,408.58
  5. Step 5: Solve for x
    x = 3,109,871,367,408.58/2,020,665.12
  6. Step 6: Final answer
    x = 1,539,033.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.