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Finding the Fourth Proportional to 1,302,889.92, 1,797,977.28 and 729,935.52

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Solution

The fourth proportional to 1,302,889.92, 1,797,977.28 and 729,935.52 is: 1,007,304.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,889.92 : 1,797,977.28 = 729,935.52 : x
  2. Step 2: Convert to fraction form
    1,302,889.92/1,797,977.28 = 729,935.52/x
  3. Step 3: Cross multiply
    1,302,889.92x = 1,797,977.28 × 729,935.52
  4. Step 4: Simplify right side
    1,302,889.92x = 1,312,407,480,824.99
  5. Step 5: Solve for x
    x = 1,312,407,480,824.99/1,302,889.92
  6. Step 6: Final answer
    x = 1,007,304.96

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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.