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Finding the Fourth Proportional to 484,101.30, 725,487.64 and 306,290

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Solution

The fourth proportional to 484,101.30, 725,487.64 and 306,290 is: 459,014.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,101.30 : 725,487.64 = 306,290 : x
  2. Step 2: Convert to fraction form
    484,101.30/725,487.64 = 306,290/x
  3. Step 3: Cross multiply
    484,101.30x = 725,487.64 × 306,290
  4. Step 4: Simplify right side
    484,101.30x = 222,209,609,255.60
  5. Step 5: Solve for x
    x = 222,209,609,255.60/484,101.30
  6. Step 6: Final answer
    x = 459,014.69

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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.