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Finding the Fourth Proportional to 471,837.80, 706,028.70 and 347,421.80

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Solution

The fourth proportional to 471,837.80, 706,028.70 and 347,421.80 is: 519,860.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,837.80 : 706,028.70 = 347,421.80 : x
  2. Step 2: Convert to fraction form
    471,837.80/706,028.70 = 347,421.80/x
  3. Step 3: Cross multiply
    471,837.80x = 706,028.70 × 347,421.80
  4. Step 4: Simplify right side
    471,837.80x = 245,289,761,805.66
  5. Step 5: Solve for x
    x = 245,289,761,805.66/471,837.80
  6. Step 6: Final answer
    x = 519,860.35

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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.