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Finding the Fourth Proportional to 571,200.80, 855,764.40 and 349,325.60

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Solution

The fourth proportional to 571,200.80, 855,764.40 and 349,325.60 is: 523,354.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,200.80 : 855,764.40 = 349,325.60 : x
  2. Step 2: Convert to fraction form
    571,200.80/855,764.40 = 349,325.60/x
  3. Step 3: Cross multiply
    571,200.80x = 855,764.40 × 349,325.60
  4. Step 4: Simplify right side
    571,200.80x = 298,940,412,488.64
  5. Step 5: Solve for x
    x = 298,940,412,488.64/571,200.80
  6. Step 6: Final answer
    x = 523,354.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.