Home / 481,255.34-721,633.83-256,555.40

Finding the Fourth Proportional to 481,255.34, 721,633.83 and 256,555.40

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Solution

The fourth proportional to 481,255.34, 721,633.83 and 256,555.40 is: 384,700.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,255.34 : 721,633.83 = 256,555.40 : x
  2. Step 2: Convert to fraction form
    481,255.34/721,633.83 = 256,555.40/x
  3. Step 3: Cross multiply
    481,255.34x = 721,633.83 × 256,555.40
  4. Step 4: Simplify right side
    481,255.34x = 185,139,055,909.18
  5. Step 5: Solve for x
    x = 185,139,055,909.18/481,255.34
  6. Step 6: Final answer
    x = 384,700.26

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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.