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Finding the Fourth Proportional to 484,504.40, 726,670.20 and 306,693.20

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Solution

The fourth proportional to 484,504.40, 726,670.20 and 306,693.20 is: 459,985.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,504.40 : 726,670.20 = 306,693.20 : x
  2. Step 2: Convert to fraction form
    484,504.40/726,670.20 = 306,693.20/x
  3. Step 3: Cross multiply
    484,504.40x = 726,670.20 × 306,693.20
  4. Step 4: Simplify right side
    484,504.40x = 222,864,808,982.64
  5. Step 5: Solve for x
    x = 222,864,808,982.64/484,504.40
  6. Step 6: Final answer
    x = 459,985.11

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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.