Home / 931,566.80-1,397,350.20-266,718.80

Finding the Fourth Proportional to 931,566.80, 1,397,350.20 and 266,718.80

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Solution

The fourth proportional to 931,566.80, 1,397,350.20 and 266,718.80 is: 400,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,566.80 : 1,397,350.20 = 266,718.80 : x
  2. Step 2: Convert to fraction form
    931,566.80/1,397,350.20 = 266,718.80/x
  3. Step 3: Cross multiply
    931,566.80x = 1,397,350.20 × 266,718.80
  4. Step 4: Simplify right side
    931,566.80x = 372,699,568,523.76
  5. Step 5: Solve for x
    x = 372,699,568,523.76/931,566.80
  6. Step 6: Final answer
    x = 400,078.20

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Double scale
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Similar ratio
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1.5x scale

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.