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Finding the Fourth Proportional to 909,092.72, 1,363,836 and 348,127.28

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Solution

The fourth proportional to 909,092.72, 1,363,836 and 348,127.28 is: 522,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,092.72 : 1,363,836 = 348,127.28 : x
  2. Step 2: Convert to fraction form
    909,092.72/1,363,836 = 348,127.28/x
  3. Step 3: Cross multiply
    909,092.72x = 1,363,836 × 348,127.28
  4. Step 4: Simplify right side
    909,092.72x = 474,788,517,046.08
  5. Step 5: Solve for x
    x = 474,788,517,046.08/909,092.72
  6. Step 6: Final answer
    x = 522,266.33

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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.