Home / 885,909.40-1,328,604.90-317,224.60

Finding the Fourth Proportional to 885,909.40, 1,328,604.90 and 317,224.60

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Solution

The fourth proportional to 885,909.40, 1,328,604.90 and 317,224.60 is: 475,744.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,909.40 : 1,328,604.90 = 317,224.60 : x
  2. Step 2: Convert to fraction form
    885,909.40/1,328,604.90 = 317,224.60/x
  3. Step 3: Cross multiply
    885,909.40x = 1,328,604.90 × 317,224.60
  4. Step 4: Simplify right side
    885,909.40x = 421,466,157,960.54
  5. Step 5: Solve for x
    x = 421,466,157,960.54/885,909.40
  6. Step 6: Final answer
    x = 475,744.09

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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.