Home / 5,318,919-7,978,378.50-1,329,831

Finding the Fourth Proportional to 5,318,919, 7,978,378.50 and 1,329,831

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Solution

The fourth proportional to 5,318,919, 7,978,378.50 and 1,329,831 is: 1,994,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318,919 : 7,978,378.50 = 1,329,831 : x
  2. Step 2: Convert to fraction form
    5,318,919/7,978,378.50 = 1,329,831/x
  3. Step 3: Cross multiply
    5,318,919x = 7,978,378.50 × 1,329,831
  4. Step 4: Simplify right side
    5,318,919x = 10,609,895,059,033.50
  5. Step 5: Solve for x
    x = 10,609,895,059,033.50/5,318,919
  6. Step 6: Final answer
    x = 1,994,746.50

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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.