Home / 810,086.24-1,117,984.40-447,541.78

Finding the Fourth Proportional to 810,086.24, 1,117,984.40 and 447,541.78

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Solution

The fourth proportional to 810,086.24, 1,117,984.40 and 447,541.78 is: 617,643.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,086.24 : 1,117,984.40 = 447,541.78 : x
  2. Step 2: Convert to fraction form
    810,086.24/1,117,984.40 = 447,541.78/x
  3. Step 3: Cross multiply
    810,086.24x = 1,117,984.40 × 447,541.78
  4. Step 4: Simplify right side
    810,086.24x = 500,344,728,388.23
  5. Step 5: Solve for x
    x = 500,344,728,388.23/810,086.24
  6. Step 6: Final answer
    x = 617,643.78

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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.