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Finding the Fourth Proportional to 378,442.88, 522,330.17 and 366,444.46

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Solution

The fourth proportional to 378,442.88, 522,330.17 and 366,444.46 is: 505,769.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,442.88 : 522,330.17 = 366,444.46 : x
  2. Step 2: Convert to fraction form
    378,442.88/522,330.17 = 366,444.46/x
  3. Step 3: Cross multiply
    378,442.88x = 522,330.17 × 366,444.46
  4. Step 4: Simplify right side
    378,442.88x = 191,404,995,031.19
  5. Step 5: Solve for x
    x = 191,404,995,031.19/378,442.88
  6. Step 6: Final answer
    x = 505,769.83

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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.