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Finding the Fourth Proportional to 666,015.48, 919,082.70 and 364,203

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Solution

The fourth proportional to 666,015.48, 919,082.70 and 364,203 is: 502,589.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,015.48 : 919,082.70 = 364,203 : x
  2. Step 2: Convert to fraction form
    666,015.48/919,082.70 = 364,203/x
  3. Step 3: Cross multiply
    666,015.48x = 919,082.70 × 364,203
  4. Step 4: Simplify right side
    666,015.48x = 334,732,676,588.10
  5. Step 5: Solve for x
    x = 334,732,676,588.10/666,015.48
  6. Step 6: Final answer
    x = 502,589.93

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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.