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Finding the Fourth Proportional to 608,549.20, 912,629.40 and 253,477.60

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Solution

The fourth proportional to 608,549.20, 912,629.40 and 253,477.60 is: 380,135.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,549.20 : 912,629.40 = 253,477.60 : x
  2. Step 2: Convert to fraction form
    608,549.20/912,629.40 = 253,477.60/x
  3. Step 3: Cross multiply
    608,549.20x = 912,629.40 × 253,477.60
  4. Step 4: Simplify right side
    608,549.20x = 231,331,110,001.44
  5. Step 5: Solve for x
    x = 231,331,110,001.44/608,549.20
  6. Step 6: Final answer
    x = 380,135.43

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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.