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Finding the Fourth Proportional to 561,367.73, 774,443.03 and 343,586.09

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Solution

The fourth proportional to 561,367.73, 774,443.03 and 343,586.09 is: 473,999.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,367.73 : 774,443.03 = 343,586.09 : x
  2. Step 2: Convert to fraction form
    561,367.73/774,443.03 = 343,586.09/x
  3. Step 3: Cross multiply
    561,367.73x = 774,443.03 × 343,586.09
  4. Step 4: Simplify right side
    561,367.73x = 266,087,854,112.08
  5. Step 5: Solve for x
    x = 266,087,854,112.08/561,367.73
  6. Step 6: Final answer
    x = 473,999.20

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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.