Home / 1,280,657.79-1,767,375.78-736,876.20

Finding the Fourth Proportional to 1,280,657.79, 1,767,375.78 and 736,876.20

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Solution

The fourth proportional to 1,280,657.79, 1,767,375.78 and 736,876.20 is: 1,016,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,657.79 : 1,767,375.78 = 736,876.20 : x
  2. Step 2: Convert to fraction form
    1,280,657.79/1,767,375.78 = 736,876.20/x
  3. Step 3: Cross multiply
    1,280,657.79x = 1,767,375.78 × 736,876.20
  4. Step 4: Simplify right side
    1,280,657.79x = 1,302,337,148,738.44
  5. Step 5: Solve for x
    x = 1,302,337,148,738.44/1,280,657.79
  6. Step 6: Final answer
    x = 1,016,928.30

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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.