Home / 480,666.85-721,427.97-256,212.61

Finding the Fourth Proportional to 480,666.85, 721,427.97 and 256,212.61

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Solution

The fourth proportional to 480,666.85, 721,427.97 and 256,212.61 is: 384,546.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,666.85 : 721,427.97 = 256,212.61 : x
  2. Step 2: Convert to fraction form
    480,666.85/721,427.97 = 256,212.61/x
  3. Step 3: Cross multiply
    480,666.85x = 721,427.97 × 256,212.61
  4. Step 4: Simplify right side
    480,666.85x = 184,838,943,120.70
  5. Step 5: Solve for x
    x = 184,838,943,120.70/480,666.85
  6. Step 6: Final answer
    x = 384,546.89

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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.