Home / 1,221,242.16-1,685,516.01-677,553.05

Finding the Fourth Proportional to 1,221,242.16, 1,685,516.01 and 677,553.05

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Solution

The fourth proportional to 1,221,242.16, 1,685,516.01 and 677,553.05 is: 935,135.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,242.16 : 1,685,516.01 = 677,553.05 : x
  2. Step 2: Convert to fraction form
    1,221,242.16/1,685,516.01 = 677,553.05/x
  3. Step 3: Cross multiply
    1,221,242.16x = 1,685,516.01 × 677,553.05
  4. Step 4: Simplify right side
    1,221,242.16x = 1,142,026,515,072.30
  5. Step 5: Solve for x
    x = 1,142,026,515,072.30/1,221,242.16
  6. Step 6: Final answer
    x = 935,135.18

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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.