Home / 2,578,687.02-3,868,026.30-685,428.48

Finding the Fourth Proportional to 2,578,687.02, 3,868,026.30 and 685,428.48

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Solution

The fourth proportional to 2,578,687.02, 3,868,026.30 and 685,428.48 is: 1,028,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,687.02 : 3,868,026.30 = 685,428.48 : x
  2. Step 2: Convert to fraction form
    2,578,687.02/3,868,026.30 = 685,428.48/x
  3. Step 3: Cross multiply
    2,578,687.02x = 3,868,026.30 × 685,428.48
  4. Step 4: Simplify right side
    2,578,687.02x = 2,651,255,387,409.02
  5. Step 5: Solve for x
    x = 2,651,255,387,409.02/2,578,687.02
  6. Step 6: Final answer
    x = 1,028,141.60

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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.