Home / 787,119.89-1,180,764.13-218,503.37

Finding the Fourth Proportional to 787,119.89, 1,180,764.13 and 218,503.37

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Solution

The fourth proportional to 787,119.89, 1,180,764.13 and 218,503.37 is: 327,778.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,119.89 : 1,180,764.13 = 218,503.37 : x
  2. Step 2: Convert to fraction form
    787,119.89/1,180,764.13 = 218,503.37/x
  3. Step 3: Cross multiply
    787,119.89x = 1,180,764.13 × 218,503.37
  4. Step 4: Simplify right side
    787,119.89x = 258,000,938,081.95
  5. Step 5: Solve for x
    x = 258,000,938,081.95/787,119.89
  6. Step 6: Final answer
    x = 327,778.45

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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.