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Finding the Fourth Proportional to 3,111,552, 4,667,328 and 747,648

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Solution

The fourth proportional to 3,111,552, 4,667,328 and 747,648 is: 1,121,472

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,552 : 4,667,328 = 747,648 : x
  2. Step 2: Convert to fraction form
    3,111,552/4,667,328 = 747,648/x
  3. Step 3: Cross multiply
    3,111,552x = 4,667,328 × 747,648
  4. Step 4: Simplify right side
    3,111,552x = 3,489,518,444,544
  5. Step 5: Solve for x
    x = 3,489,518,444,544/3,111,552
  6. Step 6: Final answer
    x = 1,121,472

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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.