Home / 3,179,679.90-4,769,407.45-905,216.50

Finding the Fourth Proportional to 3,179,679.90, 4,769,407.45 and 905,216.50

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Solution

The fourth proportional to 3,179,679.90, 4,769,407.45 and 905,216.50 is: 1,357,792.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,679.90 : 4,769,407.45 = 905,216.50 : x
  2. Step 2: Convert to fraction form
    3,179,679.90/4,769,407.45 = 905,216.50/x
  3. Step 3: Cross multiply
    3,179,679.90x = 4,769,407.45 × 905,216.50
  4. Step 4: Simplify right side
    3,179,679.90x = 4,317,346,318,962.93
  5. Step 5: Solve for x
    x = 4,317,346,318,962.93/3,179,679.90
  6. Step 6: Final answer
    x = 1,357,792.75

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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.