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Finding the Fourth Proportional to 378,882.82, 523,055.10 and 276,793.66

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Solution

The fourth proportional to 378,882.82, 523,055.10 and 276,793.66 is: 382,119.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,882.82 : 523,055.10 = 276,793.66 : x
  2. Step 2: Convert to fraction form
    378,882.82/523,055.10 = 276,793.66/x
  3. Step 3: Cross multiply
    378,882.82x = 523,055.10 × 276,793.66
  4. Step 4: Simplify right side
    378,882.82x = 144,778,335,510.67
  5. Step 5: Solve for x
    x = 144,778,335,510.67/378,882.82
  6. Step 6: Final answer
    x = 382,119.03

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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.