Home / 1,260,396.42-1,739,047.78-716,489.12

Finding the Fourth Proportional to 1,260,396.42, 1,739,047.78 and 716,489.12

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Solution

The fourth proportional to 1,260,396.42, 1,739,047.78 and 716,489.12 is: 988,584.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,396.42 : 1,739,047.78 = 716,489.12 : x
  2. Step 2: Convert to fraction form
    1,260,396.42/1,739,047.78 = 716,489.12/x
  3. Step 3: Cross multiply
    1,260,396.42x = 1,739,047.78 × 716,489.12
  4. Step 4: Simplify right side
    1,260,396.42x = 1,246,008,813,530.15
  5. Step 5: Solve for x
    x = 1,246,008,813,530.15/1,260,396.42
  6. Step 6: Final answer
    x = 988,584.86

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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.