Home / 481,254.20-721,632.12-256,554.30

Finding the Fourth Proportional to 481,254.20, 721,632.12 and 256,554.30

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Solution

The fourth proportional to 481,254.20, 721,632.12 and 256,554.30 is: 384,698.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,254.20 : 721,632.12 = 256,554.30 : x
  2. Step 2: Convert to fraction form
    481,254.20/721,632.12 = 256,554.30/x
  3. Step 3: Cross multiply
    481,254.20x = 721,632.12 × 256,554.30
  4. Step 4: Simplify right side
    481,254.20x = 185,137,823,404.12
  5. Step 5: Solve for x
    x = 185,137,823,404.12/481,254.20
  6. Step 6: Final answer
    x = 384,698.61

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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.