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Finding the Fourth Proportional to 666,864.24, 920,272.57 and 360,940.57

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Solution

The fourth proportional to 666,864.24, 920,272.57 and 360,940.57 is: 498,097.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,864.24 : 920,272.57 = 360,940.57 : x
  2. Step 2: Convert to fraction form
    666,864.24/920,272.57 = 360,940.57/x
  3. Step 3: Cross multiply
    666,864.24x = 920,272.57 × 360,940.57
  4. Step 4: Simplify right side
    666,864.24x = 332,163,705,971.17
  5. Step 5: Solve for x
    x = 332,163,705,971.17/666,864.24
  6. Step 6: Final answer
    x = 498,097.94

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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.