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Finding the Fourth Proportional to 606,954.40, 910,982.40 and 307,643.20

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Solution

The fourth proportional to 606,954.40, 910,982.40 and 307,643.20 is: 461,743.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,954.40 : 910,982.40 = 307,643.20 : x
  2. Step 2: Convert to fraction form
    606,954.40/910,982.40 = 307,643.20/x
  3. Step 3: Cross multiply
    606,954.40x = 910,982.40 × 307,643.20
  4. Step 4: Simplify right side
    606,954.40x = 280,257,540,679.68
  5. Step 5: Solve for x
    x = 280,257,540,679.68/606,954.40
  6. Step 6: Final answer
    x = 461,743.98

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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.