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Finding the Fourth Proportional to 3,151,936, 4,727,904 and 788,032

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Solution

The fourth proportional to 3,151,936, 4,727,904 and 788,032 is: 1,182,048

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151,936 : 4,727,904 = 788,032 : x
  2. Step 2: Convert to fraction form
    3,151,936/4,727,904 = 788,032/x
  3. Step 3: Cross multiply
    3,151,936x = 4,727,904 × 788,032
  4. Step 4: Simplify right side
    3,151,936x = 3,725,739,644,928
  5. Step 5: Solve for x
    x = 3,725,739,644,928/3,151,936
  6. Step 6: Final answer
    x = 1,182,048

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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.