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Finding the Fourth Proportional to 418,682.79, 577,785.06 and 227,697.57

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Solution

The fourth proportional to 418,682.79, 577,785.06 and 227,697.57 is: 314,224.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,682.79 : 577,785.06 = 227,697.57 : x
  2. Step 2: Convert to fraction form
    418,682.79/577,785.06 = 227,697.57/x
  3. Step 3: Cross multiply
    418,682.79x = 577,785.06 × 227,697.57
  4. Step 4: Simplify right side
    418,682.79x = 131,560,254,144.30
  5. Step 5: Solve for x
    x = 131,560,254,144.30/418,682.79
  6. Step 6: Final answer
    x = 314,224.17

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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.