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Finding the Fourth Proportional to 484,448, 668,538.24 and 272,480

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Solution

The fourth proportional to 484,448, 668,538.24 and 272,480 is: 376,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,448 : 668,538.24 = 272,480 : x
  2. Step 2: Convert to fraction form
    484,448/668,538.24 = 272,480/x
  3. Step 3: Cross multiply
    484,448x = 668,538.24 × 272,480
  4. Step 4: Simplify right side
    484,448x = 182,163,299,635.20
  5. Step 5: Solve for x
    x = 182,163,299,635.20/484,448
  6. Step 6: Final answer
    x = 376,022.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.