Home / 398,725.22-597,410.78-240,621.46

Finding the Fourth Proportional to 398,725.22, 597,410.78 and 240,621.46

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Solution

The fourth proportional to 398,725.22, 597,410.78 and 240,621.46 is: 360,523.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,725.22 : 597,410.78 = 240,621.46 : x
  2. Step 2: Convert to fraction form
    398,725.22/597,410.78 = 240,621.46/x
  3. Step 3: Cross multiply
    398,725.22x = 597,410.78 × 240,621.46
  4. Step 4: Simplify right side
    398,725.22x = 143,749,854,103.34
  5. Step 5: Solve for x
    x = 143,749,854,103.34/398,725.22
  6. Step 6: Final answer
    x = 360,523.61

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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.