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Finding the Fourth Proportional to 666,691.24, 920,026.91 and 360,760.94

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Solution

The fourth proportional to 666,691.24, 920,026.91 and 360,760.94 is: 497,846.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,691.24 : 920,026.91 = 360,760.94 : x
  2. Step 2: Convert to fraction form
    666,691.24/920,026.91 = 360,760.94/x
  3. Step 3: Cross multiply
    666,691.24x = 920,026.91 × 360,760.94
  4. Step 4: Simplify right side
    666,691.24x = 331,909,771,073.09
  5. Step 5: Solve for x
    x = 331,909,771,073.09/666,691.24
  6. Step 6: Final answer
    x = 497,846.31

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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.