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Finding the Fourth Proportional to 666,448.24, 919,695.79 and 360,523.85

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Solution

The fourth proportional to 666,448.24, 919,695.79 and 360,523.85 is: 497,521.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,448.24 : 919,695.79 = 360,523.85 : x
  2. Step 2: Convert to fraction form
    666,448.24/919,695.79 = 360,523.85/x
  3. Step 3: Cross multiply
    666,448.24x = 919,695.79 × 360,523.85
  4. Step 4: Simplify right side
    666,448.24x = 331,572,265,236.97
  5. Step 5: Solve for x
    x = 331,572,265,236.97/666,448.24
  6. Step 6: Final answer
    x = 497,521.41

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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.