Home / 1,905,131.80-2,629,072.65-1,045,706.68

Finding the Fourth Proportional to 1,905,131.80, 2,629,072.65 and 1,045,706.68

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Solution

The fourth proportional to 1,905,131.80, 2,629,072.65 and 1,045,706.68 is: 1,443,070.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905,131.80 : 2,629,072.65 = 1,045,706.68 : x
  2. Step 2: Convert to fraction form
    1,905,131.80/2,629,072.65 = 1,045,706.68/x
  3. Step 3: Cross multiply
    1,905,131.80x = 2,629,072.65 × 1,045,706.68
  4. Step 4: Simplify right side
    1,905,131.80x = 2,749,238,832,310.30
  5. Step 5: Solve for x
    x = 2,749,238,832,310.30/1,905,131.80
  6. Step 6: Final answer
    x = 1,443,070.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.