Home / 787,140.45-1,086,222.56-464,954.04

Finding the Fourth Proportional to 787,140.45, 1,086,222.56 and 464,954.04

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Solution

The fourth proportional to 787,140.45, 1,086,222.56 and 464,954.04 is: 641,618.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,140.45 : 1,086,222.56 = 464,954.04 : x
  2. Step 2: Convert to fraction form
    787,140.45/1,086,222.56 = 464,954.04/x
  3. Step 3: Cross multiply
    787,140.45x = 1,086,222.56 × 464,954.04
  4. Step 4: Simplify right side
    787,140.45x = 505,043,565,286.37
  5. Step 5: Solve for x
    x = 505,043,565,286.37/787,140.45
  6. Step 6: Final answer
    x = 641,618.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.