Home / 1,213,466.70-1,820,200.05-1,138,671.30

Finding the Fourth Proportional to 1,213,466.70, 1,820,200.05 and 1,138,671.30

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Solution

The fourth proportional to 1,213,466.70, 1,820,200.05 and 1,138,671.30 is: 1,708,006.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,466.70 : 1,820,200.05 = 1,138,671.30 : x
  2. Step 2: Convert to fraction form
    1,213,466.70/1,820,200.05 = 1,138,671.30/x
  3. Step 3: Cross multiply
    1,213,466.70x = 1,820,200.05 × 1,138,671.30
  4. Step 4: Simplify right side
    1,213,466.70x = 2,072,609,557,193.57
  5. Step 5: Solve for x
    x = 2,072,609,557,193.57/1,213,466.70
  6. Step 6: Final answer
    x = 1,708,006.95

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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.