Home / 1,260,720.38-1,739,659.97-709,426.46

Finding the Fourth Proportional to 1,260,720.38, 1,739,659.97 and 709,426.46

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Solution

The fourth proportional to 1,260,720.38, 1,739,659.97 and 709,426.46 is: 978,933.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,720.38 : 1,739,659.97 = 709,426.46 : x
  2. Step 2: Convert to fraction form
    1,260,720.38/1,739,659.97 = 709,426.46/x
  3. Step 3: Cross multiply
    1,260,720.38x = 1,739,659.97 × 709,426.46
  4. Step 4: Simplify right side
    1,260,720.38x = 1,234,160,814,120.81
  5. Step 5: Solve for x
    x = 1,234,160,814,120.81/1,260,720.38
  6. Step 6: Final answer
    x = 978,933.02

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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.