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Finding the Fourth Proportional to 666,727.82, 920,077.89 and 360,797.66

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Solution

The fourth proportional to 666,727.82, 920,077.89 and 360,797.66 is: 497,897.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,727.82 : 920,077.89 = 360,797.66 : x
  2. Step 2: Convert to fraction form
    666,727.82/920,077.89 = 360,797.66/x
  3. Step 3: Cross multiply
    666,727.82x = 920,077.89 × 360,797.66
  4. Step 4: Simplify right side
    666,727.82x = 331,961,949,729.74
  5. Step 5: Solve for x
    x = 331,961,949,729.74/666,727.82
  6. Step 6: Final answer
    x = 497,897.25

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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.