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Finding the Fourth Proportional to 1,399,008, 1,930,631.04 and 763,104

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Solution

The fourth proportional to 1,399,008, 1,930,631.04 and 763,104 is: 1,053,083.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,008 : 1,930,631.04 = 763,104 : x
  2. Step 2: Convert to fraction form
    1,399,008/1,930,631.04 = 763,104/x
  3. Step 3: Cross multiply
    1,399,008x = 1,930,631.04 × 763,104
  4. Step 4: Simplify right side
    1,399,008x = 1,473,272,269,148.16
  5. Step 5: Solve for x
    x = 1,473,272,269,148.16/1,399,008
  6. Step 6: Final answer
    x = 1,053,083.52

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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.