Home / 1,568,921.76-2,354,643.60-810,985.20

Finding the Fourth Proportional to 1,568,921.76, 2,354,643.60 and 810,985.20

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Solution

The fourth proportional to 1,568,921.76, 2,354,643.60 and 810,985.20 is: 1,217,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568,921.76 : 2,354,643.60 = 810,985.20 : x
  2. Step 2: Convert to fraction form
    1,568,921.76/2,354,643.60 = 810,985.20/x
  3. Step 3: Cross multiply
    1,568,921.76x = 2,354,643.60 × 810,985.20
  4. Step 4: Simplify right side
    1,568,921.76x = 1,909,581,110,874.72
  5. Step 5: Solve for x
    x = 1,909,581,110,874.72/1,568,921.76
  6. Step 6: Final answer
    x = 1,217,129.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.