Home / 903,279.82-1,246,436.32-521,429.62

Finding the Fourth Proportional to 903,279.82, 1,246,436.32 and 521,429.62

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Solution

The fourth proportional to 903,279.82, 1,246,436.32 and 521,429.62 is: 719,521.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,279.82 : 1,246,436.32 = 521,429.62 : x
  2. Step 2: Convert to fraction form
    903,279.82/1,246,436.32 = 521,429.62/x
  3. Step 3: Cross multiply
    903,279.82x = 1,246,436.32 × 521,429.62
  4. Step 4: Simplify right side
    903,279.82x = 649,928,816,691.80
  5. Step 5: Solve for x
    x = 649,928,816,691.80/903,279.82
  6. Step 6: Final answer
    x = 719,521.02

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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.