Home / 1,290,892.46-1,781,395.76-702,172.41

Finding the Fourth Proportional to 1,290,892.46, 1,781,395.76 and 702,172.41

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Solution

The fourth proportional to 1,290,892.46, 1,781,395.76 and 702,172.41 is: 968,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,892.46 : 1,781,395.76 = 702,172.41 : x
  2. Step 2: Convert to fraction form
    1,290,892.46/1,781,395.76 = 702,172.41/x
  3. Step 3: Cross multiply
    1,290,892.46x = 1,781,395.76 × 702,172.41
  4. Step 4: Simplify right side
    1,290,892.46x = 1,250,846,955,718.41
  5. Step 5: Solve for x
    x = 1,250,846,955,718.41/1,290,892.46
  6. Step 6: Final answer
    x = 968,978.43

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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.