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Finding the Fourth Proportional to 551,793.88, 761,489.08 and 310,061.96

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Solution

The fourth proportional to 551,793.88, 761,489.08 and 310,061.96 is: 427,893.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,793.88 : 761,489.08 = 310,061.96 : x
  2. Step 2: Convert to fraction form
    551,793.88/761,489.08 = 310,061.96/x
  3. Step 3: Cross multiply
    551,793.88x = 761,489.08 × 310,061.96
  4. Step 4: Simplify right side
    551,793.88x = 236,108,796,663.40
  5. Step 5: Solve for x
    x = 236,108,796,663.40/551,793.88
  6. Step 6: Final answer
    x = 427,893.11

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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.