Home / 394,977.02-592,352.40-128,760.80

Finding the Fourth Proportional to 394,977.02, 592,352.40 and 128,760.80

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Solution

The fourth proportional to 394,977.02, 592,352.40 and 128,760.80 is: 193,104.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,977.02 : 592,352.40 = 128,760.80 : x
  2. Step 2: Convert to fraction form
    394,977.02/592,352.40 = 128,760.80/x
  3. Step 3: Cross multiply
    394,977.02x = 592,352.40 × 128,760.80
  4. Step 4: Simplify right side
    394,977.02x = 76,271,768,905.92
  5. Step 5: Solve for x
    x = 76,271,768,905.92/394,977.02
  6. Step 6: Final answer
    x = 193,104.32

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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.