Home / 815,811.96-1,223,591.52-416,747.64

Finding the Fourth Proportional to 815,811.96, 1,223,591.52 and 416,747.64

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Solution

The fourth proportional to 815,811.96, 1,223,591.52 and 416,747.64 is: 625,056.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,811.96 : 1,223,591.52 = 416,747.64 : x
  2. Step 2: Convert to fraction form
    815,811.96/1,223,591.52 = 416,747.64/x
  3. Step 3: Cross multiply
    815,811.96x = 1,223,591.52 × 416,747.64
  4. Step 4: Simplify right side
    815,811.96x = 509,928,878,284.01
  5. Step 5: Solve for x
    x = 509,928,878,284.01/815,811.96
  6. Step 6: Final answer
    x = 625,056.88

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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.