Home / 689,306.61-1,032,188.45-422,257.51

Finding the Fourth Proportional to 689,306.61, 1,032,188.45 and 422,257.51

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Solution

The fourth proportional to 689,306.61, 1,032,188.45 and 422,257.51 is: 632,301.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,306.61 : 1,032,188.45 = 422,257.51 : x
  2. Step 2: Convert to fraction form
    689,306.61/1,032,188.45 = 422,257.51/x
  3. Step 3: Cross multiply
    689,306.61x = 1,032,188.45 × 422,257.51
  4. Step 4: Simplify right side
    689,306.61x = 435,849,321,874.06
  5. Step 5: Solve for x
    x = 435,849,321,874.06/689,306.61
  6. Step 6: Final answer
    x = 632,301.09

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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.