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Finding the Fourth Proportional to 484,888.20, 668,964.79 and 484,140.57

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Solution

The fourth proportional to 484,888.20, 668,964.79 and 484,140.57 is: 667,933.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,888.20 : 668,964.79 = 484,140.57 : x
  2. Step 2: Convert to fraction form
    484,888.20/668,964.79 = 484,140.57/x
  3. Step 3: Cross multiply
    484,888.20x = 668,964.79 × 484,140.57
  4. Step 4: Simplify right side
    484,888.20x = 323,872,994,740.53
  5. Step 5: Solve for x
    x = 323,872,994,740.53/484,888.20
  6. Step 6: Final answer
    x = 667,933.34

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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.