Home / 821,348.38-1,133,448.78-458,777.44

Finding the Fourth Proportional to 821,348.38, 1,133,448.78 and 458,777.44

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Solution

The fourth proportional to 821,348.38, 1,133,448.78 and 458,777.44 is: 633,106.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,348.38 : 1,133,448.78 = 458,777.44 : x
  2. Step 2: Convert to fraction form
    821,348.38/1,133,448.78 = 458,777.44/x
  3. Step 3: Cross multiply
    821,348.38x = 1,133,448.78 × 458,777.44
  4. Step 4: Simplify right side
    821,348.38x = 520,000,729,659.52
  5. Step 5: Solve for x
    x = 520,000,729,659.52/821,348.38
  6. Step 6: Final answer
    x = 633,106.17

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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.