Home / 1,216,121.82-1,824,219.80-417,391.76

Finding the Fourth Proportional to 1,216,121.82, 1,824,219.80 and 417,391.76

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Solution

The fourth proportional to 1,216,121.82, 1,824,219.80 and 417,391.76 is: 626,100.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,121.82 : 1,824,219.80 = 417,391.76 : x
  2. Step 2: Convert to fraction form
    1,216,121.82/1,824,219.80 = 417,391.76/x
  3. Step 3: Cross multiply
    1,216,121.82x = 1,824,219.80 × 417,391.76
  4. Step 4: Simplify right side
    1,216,121.82x = 761,414,312,948.85
  5. Step 5: Solve for x
    x = 761,414,312,948.85/1,216,121.82
  6. Step 6: Final answer
    x = 626,100.36

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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.