Home / 816,109.20-1,224,163.80-810,860.40

Finding the Fourth Proportional to 816,109.20, 1,224,163.80 and 810,860.40

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Solution

The fourth proportional to 816,109.20, 1,224,163.80 and 810,860.40 is: 1,216,290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,109.20 : 1,224,163.80 = 810,860.40 : x
  2. Step 2: Convert to fraction form
    816,109.20/1,224,163.80 = 810,860.40/x
  3. Step 3: Cross multiply
    816,109.20x = 1,224,163.80 × 810,860.40
  4. Step 4: Simplify right side
    816,109.20x = 992,625,948,533.52
  5. Step 5: Solve for x
    x = 992,625,948,533.52/816,109.20
  6. Step 6: Final answer
    x = 1,216,290.60

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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.