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Finding the Fourth Proportional to 3,111,583, 4,667,374.50 and 747,679

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Solution

The fourth proportional to 3,111,583, 4,667,374.50 and 747,679 is: 1,121,518.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,583 : 4,667,374.50 = 747,679 : x
  2. Step 2: Convert to fraction form
    3,111,583/4,667,374.50 = 747,679/x
  3. Step 3: Cross multiply
    3,111,583x = 4,667,374.50 × 747,679
  4. Step 4: Simplify right side
    3,111,583x = 3,489,697,898,785.50
  5. Step 5: Solve for x
    x = 3,489,697,898,785.50/3,111,583
  6. Step 6: Final answer
    x = 1,121,518.50

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Double scale
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Similar ratio
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1.5x scale

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.