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Finding the Fourth Proportional to 483,888.70, 667,574.60 and 279,901.74

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Solution

The fourth proportional to 483,888.70, 667,574.60 and 279,901.74 is: 386,153.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,888.70 : 667,574.60 = 279,901.74 : x
  2. Step 2: Convert to fraction form
    483,888.70/667,574.60 = 279,901.74/x
  3. Step 3: Cross multiply
    483,888.70x = 667,574.60 × 279,901.74
  4. Step 4: Simplify right side
    483,888.70x = 186,855,292,119.80
  5. Step 5: Solve for x
    x = 186,855,292,119.80/483,888.70
  6. Step 6: Final answer
    x = 386,153.45

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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.