Home / 382,621.20-573,931.80-214,659.60

Finding the Fourth Proportional to 382,621.20, 573,931.80 and 214,659.60

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Solution

The fourth proportional to 382,621.20, 573,931.80 and 214,659.60 is: 321,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,621.20 : 573,931.80 = 214,659.60 : x
  2. Step 2: Convert to fraction form
    382,621.20/573,931.80 = 214,659.60/x
  3. Step 3: Cross multiply
    382,621.20x = 573,931.80 × 214,659.60
  4. Step 4: Simplify right side
    382,621.20x = 123,199,970,615.28
  5. Step 5: Solve for x
    x = 123,199,970,615.28/382,621.20
  6. Step 6: Final answer
    x = 321,989.40

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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.