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Finding the Fourth Proportional to 551,795.88, 761,491.84 and 310,063.96

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Solution

The fourth proportional to 551,795.88, 761,491.84 and 310,063.96 is: 427,895.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,795.88 : 761,491.84 = 310,063.96 : x
  2. Step 2: Convert to fraction form
    551,795.88/761,491.84 = 310,063.96/x
  3. Step 3: Cross multiply
    551,795.88x = 761,491.84 × 310,063.96
  4. Step 4: Simplify right side
    551,795.88x = 236,111,175,418.09
  5. Step 5: Solve for x
    x = 236,111,175,418.09/551,795.88
  6. Step 6: Final answer
    x = 427,895.87

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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.