Home / 692,885.60-1,039,231.20-219,618.80

Finding the Fourth Proportional to 692,885.60, 1,039,231.20 and 219,618.80

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Solution

The fourth proportional to 692,885.60, 1,039,231.20 and 219,618.80 is: 329,397.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,885.60 : 1,039,231.20 = 219,618.80 : x
  2. Step 2: Convert to fraction form
    692,885.60/1,039,231.20 = 219,618.80/x
  3. Step 3: Cross multiply
    692,885.60x = 1,039,231.20 × 219,618.80
  4. Step 4: Simplify right side
    692,885.60x = 228,234,709,066.56
  5. Step 5: Solve for x
    x = 228,234,709,066.56/692,885.60
  6. Step 6: Final answer
    x = 329,397.39

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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.