Home / 815,808.03-1,125,976.13-521,269.35

Finding the Fourth Proportional to 815,808.03, 1,125,976.13 and 521,269.35

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Solution

The fourth proportional to 815,808.03, 1,125,976.13 and 521,269.35 is: 719,454.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,808.03 : 1,125,976.13 = 521,269.35 : x
  2. Step 2: Convert to fraction form
    815,808.03/1,125,976.13 = 521,269.35/x
  3. Step 3: Cross multiply
    815,808.03x = 1,125,976.13 × 521,269.35
  4. Step 4: Simplify right side
    815,808.03x = 586,936,845,400.62
  5. Step 5: Solve for x
    x = 586,936,845,400.62/815,808.03
  6. Step 6: Final answer
    x = 719,454.61

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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.