Home / 1,230,216.24-1,697,659.92-721,257.60

Finding the Fourth Proportional to 1,230,216.24, 1,697,659.92 and 721,257.60

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Solution

The fourth proportional to 1,230,216.24, 1,697,659.92 and 721,257.60 is: 995,312.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,216.24 : 1,697,659.92 = 721,257.60 : x
  2. Step 2: Convert to fraction form
    1,230,216.24/1,697,659.92 = 721,257.60/x
  3. Step 3: Cross multiply
    1,230,216.24x = 1,697,659.92 × 721,257.60
  4. Step 4: Simplify right side
    1,230,216.24x = 1,224,450,119,515.39
  5. Step 5: Solve for x
    x = 1,224,450,119,515.39/1,230,216.24
  6. Step 6: Final answer
    x = 995,312.92

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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.