Home / 1,285,310.19-1,771,681.89-1,012,941.21

Finding the Fourth Proportional to 1,285,310.19, 1,771,681.89 and 1,012,941.21

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Solution

The fourth proportional to 1,285,310.19, 1,771,681.89 and 1,012,941.21 is: 1,396,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,310.19 : 1,771,681.89 = 1,012,941.21 : x
  2. Step 2: Convert to fraction form
    1,285,310.19/1,771,681.89 = 1,012,941.21/x
  3. Step 3: Cross multiply
    1,285,310.19x = 1,771,681.89 × 1,012,941.21
  4. Step 4: Simplify right side
    1,285,310.19x = 1,794,609,597,391.69
  5. Step 5: Solve for x
    x = 1,794,609,597,391.69/1,285,310.19
  6. Step 6: Final answer
    x = 1,396,246.30

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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.