Home / 1,211,455.59-1,671,819.94-667,610.89

Finding the Fourth Proportional to 1,211,455.59, 1,671,819.94 and 667,610.89

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Solution

The fourth proportional to 1,211,455.59, 1,671,819.94 and 667,610.89 is: 921,309.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,455.59 : 1,671,819.94 = 667,610.89 : x
  2. Step 2: Convert to fraction form
    1,211,455.59/1,671,819.94 = 667,610.89/x
  3. Step 3: Cross multiply
    1,211,455.59x = 1,671,819.94 × 667,610.89
  4. Step 4: Simplify right side
    1,211,455.59x = 1,116,125,194,718.11
  5. Step 5: Solve for x
    x = 1,116,125,194,718.11/1,211,455.59
  6. Step 6: Final answer
    x = 921,309.21

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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.