Home / 1,260,729.35-1,739,834.11-687,769.05

Finding the Fourth Proportional to 1,260,729.35, 1,739,834.11 and 687,769.05

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Solution

The fourth proportional to 1,260,729.35, 1,739,834.11 and 687,769.05 is: 949,136.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,729.35 : 1,739,834.11 = 687,769.05 : x
  2. Step 2: Convert to fraction form
    1,260,729.35/1,739,834.11 = 687,769.05/x
  3. Step 3: Cross multiply
    1,260,729.35x = 1,739,834.11 × 687,769.05
  4. Step 4: Simplify right side
    1,260,729.35x = 1,196,604,052,992.30
  5. Step 5: Solve for x
    x = 1,196,604,052,992.30/1,260,729.35
  6. Step 6: Final answer
    x = 949,136.35

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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.