Home / 1,213,692.10-1,821,704.55-615,328.90

Finding the Fourth Proportional to 1,213,692.10, 1,821,704.55 and 615,328.90

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Solution

The fourth proportional to 1,213,692.10, 1,821,704.55 and 615,328.90 is: 923,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,692.10 : 1,821,704.55 = 615,328.90 : x
  2. Step 2: Convert to fraction form
    1,213,692.10/1,821,704.55 = 615,328.90/x
  3. Step 3: Cross multiply
    1,213,692.10x = 1,821,704.55 × 615,328.90
  4. Step 4: Simplify right side
    1,213,692.10x = 1,120,947,456,876.50
  5. Step 5: Solve for x
    x = 1,120,947,456,876.50/1,213,692.10
  6. Step 6: Final answer
    x = 923,584.70

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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.