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Finding the Fourth Proportional to 551,736.98, 761,372.73 and 322,315.51

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Solution

The fourth proportional to 551,736.98, 761,372.73 and 322,315.51 is: 444,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,736.98 : 761,372.73 = 322,315.51 : x
  2. Step 2: Convert to fraction form
    551,736.98/761,372.73 = 322,315.51/x
  3. Step 3: Cross multiply
    551,736.98x = 761,372.73 × 322,315.51
  4. Step 4: Simplify right side
    551,736.98x = 245,402,235,963.18
  5. Step 5: Solve for x
    x = 245,402,235,963.18/551,736.98
  6. Step 6: Final answer
    x = 444,781.20

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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.