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Finding the Fourth Proportional to 693,901, 957,583.38 and 375,949

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Solution

The fourth proportional to 693,901, 957,583.38 and 375,949 is: 518,809.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,901 : 957,583.38 = 375,949 : x
  2. Step 2: Convert to fraction form
    693,901/957,583.38 = 375,949/x
  3. Step 3: Cross multiply
    693,901x = 957,583.38 × 375,949
  4. Step 4: Simplify right side
    693,901x = 360,002,514,127.62
  5. Step 5: Solve for x
    x = 360,002,514,127.62/693,901
  6. Step 6: Final answer
    x = 518,809.62

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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.