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Finding the Fourth Proportional to 483,293.42, 666,870.79 and 279,304.95

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Solution

The fourth proportional to 483,293.42, 666,870.79 and 279,304.95 is: 385,397.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,293.42 : 666,870.79 = 279,304.95 : x
  2. Step 2: Convert to fraction form
    483,293.42/666,870.79 = 279,304.95/x
  3. Step 3: Cross multiply
    483,293.42x = 666,870.79 × 279,304.95
  4. Step 4: Simplify right side
    483,293.42x = 186,260,314,983.61
  5. Step 5: Solve for x
    x = 186,260,314,983.61/483,293.42
  6. Step 6: Final answer
    x = 385,397.99

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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.