Home / 818,049.33-1,128,954.62-491,462.24

Finding the Fourth Proportional to 818,049.33, 1,128,954.62 and 491,462.24

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Solution

The fourth proportional to 818,049.33, 1,128,954.62 and 491,462.24 is: 678,245.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,049.33 : 1,128,954.62 = 491,462.24 : x
  2. Step 2: Convert to fraction form
    818,049.33/1,128,954.62 = 491,462.24/x
  3. Step 3: Cross multiply
    818,049.33x = 1,128,954.62 × 491,462.24
  4. Step 4: Simplify right side
    818,049.33x = 554,838,570,454.59
  5. Step 5: Solve for x
    x = 554,838,570,454.59/818,049.33
  6. Step 6: Final answer
    x = 678,245.86

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Half scale
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Double scale
Find fourth proportional to 818,050.33, 1,128,956 and 491,463.24
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.