Home / 810,226.21-1,117,760.88-487,749.46

Finding the Fourth Proportional to 810,226.21, 1,117,760.88 and 487,749.46

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Solution

The fourth proportional to 810,226.21, 1,117,760.88 and 487,749.46 is: 672,882.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,226.21 : 1,117,760.88 = 487,749.46 : x
  2. Step 2: Convert to fraction form
    810,226.21/1,117,760.88 = 487,749.46/x
  3. Step 3: Cross multiply
    810,226.21x = 1,117,760.88 × 487,749.46
  4. Step 4: Simplify right side
    810,226.21x = 545,187,265,629.13
  5. Step 5: Solve for x
    x = 545,187,265,629.13/810,226.21
  6. Step 6: Final answer
    x = 672,882.78

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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.