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Finding the Fourth Proportional to 551,579.08, 761,469.78 and 371,239.24

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Solution

The fourth proportional to 551,579.08, 761,469.78 and 371,239.24 is: 512,505.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,579.08 : 761,469.78 = 371,239.24 : x
  2. Step 2: Convert to fraction form
    551,579.08/761,469.78 = 371,239.24/x
  3. Step 3: Cross multiply
    551,579.08x = 761,469.78 × 371,239.24
  4. Step 4: Simplify right side
    551,579.08x = 282,687,462,410.17
  5. Step 5: Solve for x
    x = 282,687,462,410.17/551,579.08
  6. Step 6: Final answer
    x = 512,505.77

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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.