Home / 354,650.40-531,975.60-291,664.80

Finding the Fourth Proportional to 354,650.40, 531,975.60 and 291,664.80

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Solution

The fourth proportional to 354,650.40, 531,975.60 and 291,664.80 is: 437,497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,650.40 : 531,975.60 = 291,664.80 : x
  2. Step 2: Convert to fraction form
    354,650.40/531,975.60 = 291,664.80/x
  3. Step 3: Cross multiply
    354,650.40x = 531,975.60 × 291,664.80
  4. Step 4: Simplify right side
    354,650.40x = 155,158,556,978.88
  5. Step 5: Solve for x
    x = 155,158,556,978.88/354,650.40
  6. Step 6: Final answer
    x = 437,497.20

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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.