Home / 579,723.20-869,152.80-299,441.60

Finding the Fourth Proportional to 579,723.20, 869,152.80 and 299,441.60

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Solution

The fourth proportional to 579,723.20, 869,152.80 and 299,441.60 is: 448,939.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,723.20 : 869,152.80 = 299,441.60 : x
  2. Step 2: Convert to fraction form
    579,723.20/869,152.80 = 299,441.60/x
  3. Step 3: Cross multiply
    579,723.20x = 869,152.80 × 299,441.60
  4. Step 4: Simplify right side
    579,723.20x = 260,260,505,076.48
  5. Step 5: Solve for x
    x = 260,260,505,076.48/579,723.20
  6. Step 6: Final answer
    x = 448,939.26

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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.