Home / 1,763,072.20-2,650,245.90-1,638,267.40

Finding the Fourth Proportional to 1,763,072.20, 2,650,245.90 and 1,638,267.40

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Solution

The fourth proportional to 1,763,072.20, 2,650,245.90 and 1,638,267.40 is: 2,462,639.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,763,072.20 : 2,650,245.90 = 1,638,267.40 : x
  2. Step 2: Convert to fraction form
    1,763,072.20/2,650,245.90 = 1,638,267.40/x
  3. Step 3: Cross multiply
    1,763,072.20x = 2,650,245.90 × 1,638,267.40
  4. Step 4: Simplify right side
    1,763,072.20x = 4,341,811,459,953.66
  5. Step 5: Solve for x
    x = 4,341,811,459,953.66/1,763,072.20
  6. Step 6: Final answer
    x = 2,462,639.62

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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.