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Finding the Fourth Proportional to 561,862.44, 775,342.98 and 320,201.64

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Solution

The fourth proportional to 561,862.44, 775,342.98 and 320,201.64 is: 441,862.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,862.44 : 775,342.98 = 320,201.64 : x
  2. Step 2: Convert to fraction form
    561,862.44/775,342.98 = 320,201.64/x
  3. Step 3: Cross multiply
    561,862.44x = 775,342.98 × 320,201.64
  4. Step 4: Simplify right side
    561,862.44x = 248,266,093,758.49
  5. Step 5: Solve for x
    x = 248,266,093,758.49/561,862.44
  6. Step 6: Final answer
    x = 441,862.77

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1.5x scale

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.