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Finding the Fourth Proportional to 666,363.38, 919,582.07 and 364,557.38

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Solution

The fourth proportional to 666,363.38, 919,582.07 and 364,557.38 is: 503,089.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,363.38 : 919,582.07 = 364,557.38 : x
  2. Step 2: Convert to fraction form
    666,363.38/919,582.07 = 364,557.38/x
  3. Step 3: Cross multiply
    666,363.38x = 919,582.07 × 364,557.38
  4. Step 4: Simplify right side
    666,363.38x = 335,240,423,713.48
  5. Step 5: Solve for x
    x = 335,240,423,713.48/666,363.38
  6. Step 6: Final answer
    x = 503,089.51

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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.