Home / 293,321.20-440,856.60-288,072.40

Finding the Fourth Proportional to 293,321.20, 440,856.60 and 288,072.40

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Solution

The fourth proportional to 293,321.20, 440,856.60 and 288,072.40 is: 432,967.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,321.20 : 440,856.60 = 288,072.40 : x
  2. Step 2: Convert to fraction form
    293,321.20/440,856.60 = 288,072.40/x
  3. Step 3: Cross multiply
    293,321.20x = 440,856.60 × 288,072.40
  4. Step 4: Simplify right side
    293,321.20x = 126,998,618,817.84
  5. Step 5: Solve for x
    x = 126,998,618,817.84/293,321.20
  6. Step 6: Final answer
    x = 432,967.75

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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.