Home / 347,723.60-521,585.40-263,742.80

Finding the Fourth Proportional to 347,723.60, 521,585.40 and 263,742.80

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Solution

The fourth proportional to 347,723.60, 521,585.40 and 263,742.80 is: 395,614.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,723.60 : 521,585.40 = 263,742.80 : x
  2. Step 2: Convert to fraction form
    347,723.60/521,585.40 = 263,742.80/x
  3. Step 3: Cross multiply
    347,723.60x = 521,585.40 × 263,742.80
  4. Step 4: Simplify right side
    347,723.60x = 137,564,393,835.12
  5. Step 5: Solve for x
    x = 137,564,393,835.12/347,723.60
  6. Step 6: Final answer
    x = 395,614.20

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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.