Home / 693,453.60-1,039,489.20-318,823.20

Finding the Fourth Proportional to 693,453.60, 1,039,489.20 and 318,823.20

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Solution

The fourth proportional to 693,453.60, 1,039,489.20 and 318,823.20 is: 477,917.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,453.60 : 1,039,489.20 = 318,823.20 : x
  2. Step 2: Convert to fraction form
    693,453.60/1,039,489.20 = 318,823.20/x
  3. Step 3: Cross multiply
    693,453.60x = 1,039,489.20 × 318,823.20
  4. Step 4: Simplify right side
    693,453.60x = 331,413,273,109.44
  5. Step 5: Solve for x
    x = 331,413,273,109.44/693,453.60
  6. Step 6: Final answer
    x = 477,917.01

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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.