Home / 2,020,742.52-2,788,426.14-1,115,266.20

Finding the Fourth Proportional to 2,020,742.52, 2,788,426.14 and 1,115,266.20

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Solution

The fourth proportional to 2,020,742.52, 2,788,426.14 and 1,115,266.20 is: 1,538,957.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020,742.52 : 2,788,426.14 = 1,115,266.20 : x
  2. Step 2: Convert to fraction form
    2,020,742.52/2,788,426.14 = 1,115,266.20/x
  3. Step 3: Cross multiply
    2,020,742.52x = 2,788,426.14 × 1,115,266.20
  4. Step 4: Simplify right side
    2,020,742.52x = 3,109,837,425,138.47
  5. Step 5: Solve for x
    x = 3,109,837,425,138.47/2,020,742.52
  6. Step 6: Final answer
    x = 1,538,957.78

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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.