Home / 929,654.82-1,283,048.84-521,778.97

Finding the Fourth Proportional to 929,654.82, 1,283,048.84 and 521,778.97

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Solution

The fourth proportional to 929,654.82, 1,283,048.84 and 521,778.97 is: 720,125.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,654.82 : 1,283,048.84 = 521,778.97 : x
  2. Step 2: Convert to fraction form
    929,654.82/1,283,048.84 = 521,778.97/x
  3. Step 3: Cross multiply
    929,654.82x = 1,283,048.84 × 521,778.97
  4. Step 4: Simplify right side
    929,654.82x = 669,467,904,098.07
  5. Step 5: Solve for x
    x = 669,467,904,098.07/929,654.82
  6. Step 6: Final answer
    x = 720,125.24

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1.5x scale

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.