Home / 808,536.10-1,211,783.55-409,287.10

Finding the Fourth Proportional to 808,536.10, 1,211,783.55 and 409,287.10

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Solution

The fourth proportional to 808,536.10, 1,211,783.55 and 409,287.10 is: 613,414.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,536.10 : 1,211,783.55 = 409,287.10 : x
  2. Step 2: Convert to fraction form
    808,536.10/1,211,783.55 = 409,287.10/x
  3. Step 3: Cross multiply
    808,536.10x = 1,211,783.55 × 409,287.10
  4. Step 4: Simplify right side
    808,536.10x = 495,967,375,007.21
  5. Step 5: Solve for x
    x = 495,967,375,007.21/808,536.10
  6. Step 6: Final answer
    x = 613,414.01

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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.