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Finding the Fourth Proportional to 674,502.44, 930,815.80 and 368,578.83

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Solution

The fourth proportional to 674,502.44, 930,815.80 and 368,578.83 is: 508,640.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,502.44 : 930,815.80 = 368,578.83 : x
  2. Step 2: Convert to fraction form
    674,502.44/930,815.80 = 368,578.83/x
  3. Step 3: Cross multiply
    674,502.44x = 930,815.80 × 368,578.83
  4. Step 4: Simplify right side
    674,502.44x = 343,078,998,509.51
  5. Step 5: Solve for x
    x = 343,078,998,509.51/674,502.44
  6. Step 6: Final answer
    x = 508,640.11

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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.