Home / 886,983.40-1,330,215.90-318,298.60

Finding the Fourth Proportional to 886,983.40, 1,330,215.90 and 318,298.60

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Solution

The fourth proportional to 886,983.40, 1,330,215.90 and 318,298.60 is: 477,354.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,983.40 : 1,330,215.90 = 318,298.60 : x
  2. Step 2: Convert to fraction form
    886,983.40/1,330,215.90 = 318,298.60/x
  3. Step 3: Cross multiply
    886,983.40x = 1,330,215.90 × 318,298.60
  4. Step 4: Simplify right side
    886,983.40x = 423,405,858,667.74
  5. Step 5: Solve for x
    x = 423,405,858,667.74/886,983.40
  6. Step 6: Final answer
    x = 477,354.88

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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.