Home / 1,123,965.20-1,685,364.60-413,627.60

Finding the Fourth Proportional to 1,123,965.20, 1,685,364.60 and 413,627.60

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Solution

The fourth proportional to 1,123,965.20, 1,685,364.60 and 413,627.60 is: 620,226.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,965.20 : 1,685,364.60 = 413,627.60 : x
  2. Step 2: Convert to fraction form
    1,123,965.20/1,685,364.60 = 413,627.60/x
  3. Step 3: Cross multiply
    1,123,965.20x = 1,685,364.60 × 413,627.60
  4. Step 4: Simplify right side
    1,123,965.20x = 697,113,314,622.96
  5. Step 5: Solve for x
    x = 697,113,314,622.96/1,123,965.20
  6. Step 6: Final answer
    x = 620,226.78

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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.