Home / 994,290.80-1,491,684.60-320,435.60

Finding the Fourth Proportional to 994,290.80, 1,491,684.60 and 320,435.60

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Solution

The fourth proportional to 994,290.80, 1,491,684.60 and 320,435.60 is: 480,733.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,290.80 : 1,491,684.60 = 320,435.60 : x
  2. Step 2: Convert to fraction form
    994,290.80/1,491,684.60 = 320,435.60/x
  3. Step 3: Cross multiply
    994,290.80x = 1,491,684.60 × 320,435.60
  4. Step 4: Simplify right side
    994,290.80x = 477,988,849,811.76
  5. Step 5: Solve for x
    x = 477,988,849,811.76/994,290.80
  6. Step 6: Final answer
    x = 480,733.45

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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.