Home / 1,280,659.29-1,767,377.85-736,877.70

Finding the Fourth Proportional to 1,280,659.29, 1,767,377.85 and 736,877.70

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Solution

The fourth proportional to 1,280,659.29, 1,767,377.85 and 736,877.70 is: 1,016,930.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,659.29 : 1,767,377.85 = 736,877.70 : x
  2. Step 2: Convert to fraction form
    1,280,659.29/1,767,377.85 = 736,877.70/x
  3. Step 3: Cross multiply
    1,280,659.29x = 1,767,377.85 × 736,877.70
  4. Step 4: Simplify right side
    1,280,659.29x = 1,302,341,325,138.95
  5. Step 5: Solve for x
    x = 1,302,341,325,138.95/1,280,659.29
  6. Step 6: Final answer
    x = 1,016,930.37

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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.