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Finding the Fourth Proportional to 551,820.34, 761,487.54 and 322,398.85

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Solution

The fourth proportional to 551,820.34, 761,487.54 and 322,398.85 is: 444,896.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,820.34 : 761,487.54 = 322,398.85 : x
  2. Step 2: Convert to fraction form
    551,820.34/761,487.54 = 322,398.85/x
  3. Step 3: Cross multiply
    551,820.34x = 761,487.54 × 322,398.85
  4. Step 4: Simplify right side
    551,820.34x = 245,502,707,185.33
  5. Step 5: Solve for x
    x = 245,502,707,185.33/551,820.34
  6. Step 6: Final answer
    x = 444,896.08

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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.