Home / 2,087,778.47-3,130,899.56-721,204.52

Finding the Fourth Proportional to 2,087,778.47, 3,130,899.56 and 721,204.52

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Solution

The fourth proportional to 2,087,778.47, 3,130,899.56 and 721,204.52 is: 1,081,541.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,778.47 : 3,130,899.56 = 721,204.52 : x
  2. Step 2: Convert to fraction form
    2,087,778.47/3,130,899.56 = 721,204.52/x
  3. Step 3: Cross multiply
    2,087,778.47x = 3,130,899.56 × 721,204.52
  4. Step 4: Simplify right side
    2,087,778.47x = 2,258,018,910,731.99
  5. Step 5: Solve for x
    x = 2,258,018,910,731.99/2,087,778.47
  6. Step 6: Final answer
    x = 1,081,541.43

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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.