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Finding the Fourth Proportional to 561,484.03, 774,926.99 and 357,469.78

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Solution

The fourth proportional to 561,484.03, 774,926.99 and 357,469.78 is: 493,358.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,484.03 : 774,926.99 = 357,469.78 : x
  2. Step 2: Convert to fraction form
    561,484.03/774,926.99 = 357,469.78/x
  3. Step 3: Cross multiply
    561,484.03x = 774,926.99 × 357,469.78
  4. Step 4: Simplify right side
    561,484.03x = 277,012,978,844.01
  5. Step 5: Solve for x
    x = 277,012,978,844.01/561,484.03
  6. Step 6: Final answer
    x = 493,358.61

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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.