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Finding the Fourth Proportional to 470,536.80, 705,805.20 and 321,237.60

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Solution

The fourth proportional to 470,536.80, 705,805.20 and 321,237.60 is: 481,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,536.80 : 705,805.20 = 321,237.60 : x
  2. Step 2: Convert to fraction form
    470,536.80/705,805.20 = 321,237.60/x
  3. Step 3: Cross multiply
    470,536.80x = 705,805.20 × 321,237.60
  4. Step 4: Simplify right side
    470,536.80x = 226,731,168,515.52
  5. Step 5: Solve for x
    x = 226,731,168,515.52/470,536.80
  6. Step 6: Final answer
    x = 481,856.40

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Similar ratio
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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.