Home / 676,059.51-1,013,388.54-422,758.68

Finding the Fourth Proportional to 676,059.51, 1,013,388.54 and 422,758.68

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Solution

The fourth proportional to 676,059.51, 1,013,388.54 and 422,758.68 is: 633,699.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,059.51 : 1,013,388.54 = 422,758.68 : x
  2. Step 2: Convert to fraction form
    676,059.51/1,013,388.54 = 422,758.68/x
  3. Step 3: Cross multiply
    676,059.51x = 1,013,388.54 × 422,758.68
  4. Step 4: Simplify right side
    676,059.51x = 428,418,796,111.98
  5. Step 5: Solve for x
    x = 428,418,796,111.98/676,059.51
  6. Step 6: Final answer
    x = 633,699.83

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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.