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Finding the Fourth Proportional to 551,833.82, 761,738.77 and 322,465.66

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Solution

The fourth proportional to 551,833.82, 761,738.77 and 322,465.66 is: 445,124.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,833.82 : 761,738.77 = 322,465.66 : x
  2. Step 2: Convert to fraction form
    551,833.82/761,738.77 = 322,465.66/x
  3. Step 3: Cross multiply
    551,833.82x = 761,738.77 × 322,465.66
  4. Step 4: Simplify right side
    551,833.82x = 245,634,593,714.37
  5. Step 5: Solve for x
    x = 245,634,593,714.37/551,833.82
  6. Step 6: Final answer
    x = 445,124.21

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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.