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Finding the Fourth Proportional to 552,998.36, 829,730.82 and 328,787.12

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Solution

The fourth proportional to 552,998.36, 829,730.82 and 328,787.12 is: 493,319.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,998.36 : 829,730.82 = 328,787.12 : x
  2. Step 2: Convert to fraction form
    552,998.36/829,730.82 = 328,787.12/x
  3. Step 3: Cross multiply
    552,998.36x = 829,730.82 × 328,787.12
  4. Step 4: Simplify right side
    552,998.36x = 272,804,806,683.04
  5. Step 5: Solve for x
    x = 272,804,806,683.04/552,998.36
  6. Step 6: Final answer
    x = 493,319.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.