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Finding the Fourth Proportional to 561,914.91, 775,179.59 and 368,271.10

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Solution

The fourth proportional to 561,914.91, 775,179.59 and 368,271.10 is: 508,041.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,914.91 : 775,179.59 = 368,271.10 : x
  2. Step 2: Convert to fraction form
    561,914.91/775,179.59 = 368,271.10/x
  3. Step 3: Cross multiply
    561,914.91x = 775,179.59 × 368,271.10
  4. Step 4: Simplify right side
    561,914.91x = 285,476,239,289.58
  5. Step 5: Solve for x
    x = 285,476,239,289.58/561,914.91
  6. Step 6: Final answer
    x = 508,041.76

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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.