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Finding the Fourth Proportional to 666,320.52, 919,544.05 and 364,514.52

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Solution

The fourth proportional to 666,320.52, 919,544.05 and 364,514.52 is: 503,041.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,320.52 : 919,544.05 = 364,514.52 : x
  2. Step 2: Convert to fraction form
    666,320.52/919,544.05 = 364,514.52/x
  3. Step 3: Cross multiply
    666,320.52x = 919,544.05 × 364,514.52
  4. Step 4: Simplify right side
    666,320.52x = 335,187,158,004.61
  5. Step 5: Solve for x
    x = 335,187,158,004.61/666,320.52
  6. Step 6: Final answer
    x = 503,041.93

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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.