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Finding the Fourth Proportional to 551,724.66, 761,728.59 and 361,060.38

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Solution

The fourth proportional to 551,724.66, 761,728.59 and 361,060.38 is: 498,491.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,724.66 : 761,728.59 = 361,060.38 : x
  2. Step 2: Convert to fraction form
    551,724.66/761,728.59 = 361,060.38/x
  3. Step 3: Cross multiply
    551,724.66x = 761,728.59 × 361,060.38
  4. Step 4: Simplify right side
    551,724.66x = 275,030,014,162.26
  5. Step 5: Solve for x
    x = 275,030,014,162.26/551,724.66
  6. Step 6: Final answer
    x = 498,491.43

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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.