Home / 879,422.60-1,320,300.30-702,129.80

Finding the Fourth Proportional to 879,422.60, 1,320,300.30 and 702,129.80

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Solution

The fourth proportional to 879,422.60, 1,320,300.30 and 702,129.80 is: 1,054,125.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,422.60 : 1,320,300.30 = 702,129.80 : x
  2. Step 2: Convert to fraction form
    879,422.60/1,320,300.30 = 702,129.80/x
  3. Step 3: Cross multiply
    879,422.60x = 1,320,300.30 × 702,129.80
  4. Step 4: Simplify right side
    879,422.60x = 927,022,185,578.94
  5. Step 5: Solve for x
    x = 927,022,185,578.94/879,422.60
  6. Step 6: Final answer
    x = 1,054,125.95

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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.