Home / 1,253,157.40-1,729,060.73-709,293.12

Finding the Fourth Proportional to 1,253,157.40, 1,729,060.73 and 709,293.12

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Solution

The fourth proportional to 1,253,157.40, 1,729,060.73 and 709,293.12 is: 978,656.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,157.40 : 1,729,060.73 = 709,293.12 : x
  2. Step 2: Convert to fraction form
    1,253,157.40/1,729,060.73 = 709,293.12/x
  3. Step 3: Cross multiply
    1,253,157.40x = 1,729,060.73 × 709,293.12
  4. Step 4: Simplify right side
    1,253,157.40x = 1,226,410,867,659.41
  5. Step 5: Solve for x
    x = 1,226,410,867,659.41/1,253,157.40
  6. Step 6: Final answer
    x = 978,656.69

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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.