Home / 2,753,998.60-4,130,997.90-861,320.20

Finding the Fourth Proportional to 2,753,998.60, 4,130,997.90 and 861,320.20

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Solution

The fourth proportional to 2,753,998.60, 4,130,997.90 and 861,320.20 is: 1,291,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753,998.60 : 4,130,997.90 = 861,320.20 : x
  2. Step 2: Convert to fraction form
    2,753,998.60/4,130,997.90 = 861,320.20/x
  3. Step 3: Cross multiply
    2,753,998.60x = 4,130,997.90 × 861,320.20
  4. Step 4: Simplify right side
    2,753,998.60x = 3,558,111,937,427.58
  5. Step 5: Solve for x
    x = 3,558,111,937,427.58/2,753,998.60
  6. Step 6: Final answer
    x = 1,291,980.30

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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.