Home / 347,629.60-521,444.40-263,648.80

Finding the Fourth Proportional to 347,629.60, 521,444.40 and 263,648.80

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Solution

The fourth proportional to 347,629.60, 521,444.40 and 263,648.80 is: 395,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,629.60 : 521,444.40 = 263,648.80 : x
  2. Step 2: Convert to fraction form
    347,629.60/521,444.40 = 263,648.80/x
  3. Step 3: Cross multiply
    347,629.60x = 521,444.40 × 263,648.80
  4. Step 4: Simplify right side
    347,629.60x = 137,478,190,326.72
  5. Step 5: Solve for x
    x = 137,478,190,326.72/347,629.60
  6. Step 6: Final answer
    x = 395,473.20

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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.