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Finding the Fourth Proportional to 502,867.81, 693,957.56 and 276,513.31

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Solution

The fourth proportional to 502,867.81, 693,957.56 and 276,513.31 is: 381,588.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,867.81 : 693,957.56 = 276,513.31 : x
  2. Step 2: Convert to fraction form
    502,867.81/693,957.56 = 276,513.31/x
  3. Step 3: Cross multiply
    502,867.81x = 693,957.56 × 276,513.31
  4. Step 4: Simplify right side
    502,867.81x = 191,888,500,532.56
  5. Step 5: Solve for x
    x = 191,888,500,532.56/502,867.81
  6. Step 6: Final answer
    x = 381,588.36

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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.