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Finding the Fourth Proportional to 484,127.80, 726,191.70 and 306,057.40

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Solution

The fourth proportional to 484,127.80, 726,191.70 and 306,057.40 is: 459,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,127.80 : 726,191.70 = 306,057.40 : x
  2. Step 2: Convert to fraction form
    484,127.80/726,191.70 = 306,057.40/x
  3. Step 3: Cross multiply
    484,127.80x = 726,191.70 × 306,057.40
  4. Step 4: Simplify right side
    484,127.80x = 222,256,343,603.58
  5. Step 5: Solve for x
    x = 222,256,343,603.58/484,127.80
  6. Step 6: Final answer
    x = 459,086.10

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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.