Home / 885,716.40-1,328,704.20-286,575.60

Finding the Fourth Proportional to 885,716.40, 1,328,704.20 and 286,575.60

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Solution

The fourth proportional to 885,716.40, 1,328,704.20 and 286,575.60 is: 429,905.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,716.40 : 1,328,704.20 = 286,575.60 : x
  2. Step 2: Convert to fraction form
    885,716.40/1,328,704.20 = 286,575.60/x
  3. Step 3: Cross multiply
    885,716.40x = 1,328,704.20 × 286,575.60
  4. Step 4: Simplify right side
    885,716.40x = 380,774,203,337.52
  5. Step 5: Solve for x
    x = 380,774,203,337.52/885,716.40
  6. Step 6: Final answer
    x = 429,905.33

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Similar ratio
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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.