Home / 1,211,400.45-1,671,732.72-702,398.07

Finding the Fourth Proportional to 1,211,400.45, 1,671,732.72 and 702,398.07

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Solution

The fourth proportional to 1,211,400.45, 1,671,732.72 and 702,398.07 is: 969,309.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,400.45 : 1,671,732.72 = 702,398.07 : x
  2. Step 2: Convert to fraction form
    1,211,400.45/1,671,732.72 = 702,398.07/x
  3. Step 3: Cross multiply
    1,211,400.45x = 1,671,732.72 × 702,398.07
  4. Step 4: Simplify right side
    1,211,400.45x = 1,174,221,836,083.85
  5. Step 5: Solve for x
    x = 1,174,221,836,083.85/1,211,400.45
  6. Step 6: Final answer
    x = 969,309.39

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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.