Home / 1,280,885.15-1,767,618.44-729,600.77

Finding the Fourth Proportional to 1,280,885.15, 1,767,618.44 and 729,600.77

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Solution

The fourth proportional to 1,280,885.15, 1,767,618.44 and 729,600.77 is: 1,006,847.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,885.15 : 1,767,618.44 = 729,600.77 : x
  2. Step 2: Convert to fraction form
    1,280,885.15/1,767,618.44 = 729,600.77/x
  3. Step 3: Cross multiply
    1,280,885.15x = 1,767,618.44 × 729,600.77
  4. Step 4: Simplify right side
    1,280,885.15x = 1,289,655,767,876.11
  5. Step 5: Solve for x
    x = 1,289,655,767,876.11/1,280,885.15
  6. Step 6: Final answer
    x = 1,006,847.31

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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.