Home / 487,944.20-731,697.60-221,567.60

Finding the Fourth Proportional to 487,944.20, 731,697.60 and 221,567.60

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Solution

The fourth proportional to 487,944.20, 731,697.60 and 221,567.60 is: 332,252.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,944.20 : 731,697.60 = 221,567.60 : x
  2. Step 2: Convert to fraction form
    487,944.20/731,697.60 = 221,567.60/x
  3. Step 3: Cross multiply
    487,944.20x = 731,697.60 × 221,567.60
  4. Step 4: Simplify right side
    487,944.20x = 162,120,481,157.76
  5. Step 5: Solve for x
    x = 162,120,481,157.76/487,944.20
  6. Step 6: Final answer
    x = 332,252.09

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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.