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Finding the Fourth Proportional to 654,993.90, 903,882.32 and 368,513.30

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Solution

The fourth proportional to 654,993.90, 903,882.32 and 368,513.30 is: 508,543.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,993.90 : 903,882.32 = 368,513.30 : x
  2. Step 2: Convert to fraction form
    654,993.90/903,882.32 = 368,513.30/x
  3. Step 3: Cross multiply
    654,993.90x = 903,882.32 × 368,513.30
  4. Step 4: Simplify right side
    654,993.90x = 333,092,656,554.86
  5. Step 5: Solve for x
    x = 333,092,656,554.86/654,993.90
  6. Step 6: Final answer
    x = 508,543.14

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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.