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Finding the Fourth Proportional to 654,993.64, 903,881.95 and 368,513.04

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Solution

The fourth proportional to 654,993.64, 903,881.95 and 368,513.04 is: 508,542.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,993.64 : 903,881.95 = 368,513.04 : x
  2. Step 2: Convert to fraction form
    654,993.64/903,881.95 = 368,513.04/x
  3. Step 3: Cross multiply
    654,993.64x = 903,881.95 × 368,513.04
  4. Step 4: Simplify right side
    654,993.64x = 333,092,285,195.63
  5. Step 5: Solve for x
    x = 333,092,285,195.63/654,993.64
  6. Step 6: Final answer
    x = 508,542.78

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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.