Home / 1,245,221.19-1,867,715.15-403,780.23

Finding the Fourth Proportional to 1,245,221.19, 1,867,715.15 and 403,780.23

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Solution

The fourth proportional to 1,245,221.19, 1,867,715.15 and 403,780.23 is: 605,632.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,221.19 : 1,867,715.15 = 403,780.23 : x
  2. Step 2: Convert to fraction form
    1,245,221.19/1,867,715.15 = 403,780.23/x
  3. Step 3: Cross multiply
    1,245,221.19x = 1,867,715.15 × 403,780.23
  4. Step 4: Simplify right side
    1,245,221.19x = 754,146,450,822.58
  5. Step 5: Solve for x
    x = 754,146,450,822.58/1,245,221.19
  6. Step 6: Final answer
    x = 605,632.52

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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.