Home / 728,718.20-1,093,077.30-678,951.80

Finding the Fourth Proportional to 728,718.20, 1,093,077.30 and 678,951.80

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Solution

The fourth proportional to 728,718.20, 1,093,077.30 and 678,951.80 is: 1,018,427.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,718.20 : 1,093,077.30 = 678,951.80 : x
  2. Step 2: Convert to fraction form
    728,718.20/1,093,077.30 = 678,951.80/x
  3. Step 3: Cross multiply
    728,718.20x = 1,093,077.30 × 678,951.80
  4. Step 4: Simplify right side
    728,718.20x = 742,146,800,374.14
  5. Step 5: Solve for x
    x = 742,146,800,374.14/728,718.20
  6. Step 6: Final answer
    x = 1,018,427.70

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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.