Home / 1,102,203.65-1,521,039.90-618,769.73

Finding the Fourth Proportional to 1,102,203.65, 1,521,039.90 and 618,769.73

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Solution

The fourth proportional to 1,102,203.65, 1,521,039.90 and 618,769.73 is: 853,901.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,203.65 : 1,521,039.90 = 618,769.73 : x
  2. Step 2: Convert to fraction form
    1,102,203.65/1,521,039.90 = 618,769.73/x
  3. Step 3: Cross multiply
    1,102,203.65x = 1,521,039.90 × 618,769.73
  4. Step 4: Simplify right side
    1,102,203.65x = 941,173,449,144.34
  5. Step 5: Solve for x
    x = 941,173,449,144.34/1,102,203.65
  6. Step 6: Final answer
    x = 853,901.59

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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.