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Finding the Fourth Proportional to 866,593.04, 1,299,413.08 and 267,390.80

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Solution

The fourth proportional to 866,593.04, 1,299,413.08 and 267,390.80 is: 400,939.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,593.04 : 1,299,413.08 = 267,390.80 : x
  2. Step 2: Convert to fraction form
    866,593.04/1,299,413.08 = 267,390.80/x
  3. Step 3: Cross multiply
    866,593.04x = 1,299,413.08 × 267,390.80
  4. Step 4: Simplify right side
    866,593.04x = 347,451,102,991.66
  5. Step 5: Solve for x
    x = 347,451,102,991.66/866,593.04
  6. Step 6: Final answer
    x = 400,939.18

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Double scale
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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.