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Finding the Fourth Proportional to 551,879.67, 761,282.33 and 347,579.54

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Solution

The fourth proportional to 551,879.67, 761,282.33 and 347,579.54 is: 479,463.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,879.67 : 761,282.33 = 347,579.54 : x
  2. Step 2: Convert to fraction form
    551,879.67/761,282.33 = 347,579.54/x
  3. Step 3: Cross multiply
    551,879.67x = 761,282.33 × 347,579.54
  4. Step 4: Simplify right side
    551,879.67x = 264,606,162,071.53
  5. Step 5: Solve for x
    x = 264,606,162,071.53/551,879.67
  6. Step 6: Final answer
    x = 479,463.51

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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.