Home / 816,091.20-1,224,136.80-810,842.40

Finding the Fourth Proportional to 816,091.20, 1,224,136.80 and 810,842.40

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Solution

The fourth proportional to 816,091.20, 1,224,136.80 and 810,842.40 is: 1,216,263.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,091.20 : 1,224,136.80 = 810,842.40 : x
  2. Step 2: Convert to fraction form
    816,091.20/1,224,136.80 = 810,842.40/x
  3. Step 3: Cross multiply
    816,091.20x = 1,224,136.80 × 810,842.40
  4. Step 4: Simplify right side
    816,091.20x = 992,582,020,840.32
  5. Step 5: Solve for x
    x = 992,582,020,840.32/816,091.20
  6. Step 6: Final answer
    x = 1,216,263.60

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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.