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Finding the Fourth Proportional to 666,114.82, 919,182.87 and 375,710.38

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Solution

The fourth proportional to 666,114.82, 919,182.87 and 375,710.38 is: 518,448.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,114.82 : 919,182.87 = 375,710.38 : x
  2. Step 2: Convert to fraction form
    666,114.82/919,182.87 = 375,710.38/x
  3. Step 3: Cross multiply
    666,114.82x = 919,182.87 × 375,710.38
  4. Step 4: Simplify right side
    666,114.82x = 345,346,545,377.19
  5. Step 5: Solve for x
    x = 345,346,545,377.19/666,114.82
  6. Step 6: Final answer
    x = 518,448.97

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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.