Home / 1,631,865.96-2,447,219.72-478,790.70

Finding the Fourth Proportional to 1,631,865.96, 2,447,219.72 and 478,790.70

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Solution

The fourth proportional to 1,631,865.96, 2,447,219.72 and 478,790.70 is: 718,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631,865.96 : 2,447,219.72 = 478,790.70 : x
  2. Step 2: Convert to fraction form
    1,631,865.96/2,447,219.72 = 478,790.70/x
  3. Step 3: Cross multiply
    1,631,865.96x = 2,447,219.72 × 478,790.70
  4. Step 4: Simplify right side
    1,631,865.96x = 1,171,706,042,792.60
  5. Step 5: Solve for x
    x = 1,171,706,042,792.60/1,631,865.96
  6. Step 6: Final answer
    x = 718,016.11

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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.