Home / 815,476.38-1,223,119.44-216,484.08

Finding the Fourth Proportional to 815,476.38, 1,223,119.44 and 216,484.08

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Solution

The fourth proportional to 815,476.38, 1,223,119.44 and 216,484.08 is: 324,700.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,476.38 : 1,223,119.44 = 216,484.08 : x
  2. Step 2: Convert to fraction form
    815,476.38/1,223,119.44 = 216,484.08/x
  3. Step 3: Cross multiply
    815,476.38x = 1,223,119.44 × 216,484.08
  4. Step 4: Simplify right side
    815,476.38x = 264,785,886,698.52
  5. Step 5: Solve for x
    x = 264,785,886,698.52/815,476.38
  6. Step 6: Final answer
    x = 324,700.87

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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.