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Finding the Fourth Proportional to 534,148.80, 800,575.20 and 309,076.80

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Solution

The fourth proportional to 534,148.80, 800,575.20 and 309,076.80 is: 463,240.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,148.80 : 800,575.20 = 309,076.80 : x
  2. Step 2: Convert to fraction form
    534,148.80/800,575.20 = 309,076.80/x
  3. Step 3: Cross multiply
    534,148.80x = 800,575.20 × 309,076.80
  4. Step 4: Simplify right side
    534,148.80x = 247,439,220,975.36
  5. Step 5: Solve for x
    x = 247,439,220,975.36/534,148.80
  6. Step 6: Final answer
    x = 463,240.24

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1.5x scale

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.