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Finding the Fourth Proportional to 654,994.40, 903,883.02 and 368,513.80

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Solution

The fourth proportional to 654,994.40, 903,883.02 and 368,513.80 is: 508,543.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,994.40 : 903,883.02 = 368,513.80 : x
  2. Step 2: Convert to fraction form
    654,994.40/903,883.02 = 368,513.80/x
  3. Step 3: Cross multiply
    654,994.40x = 903,883.02 × 368,513.80
  4. Step 4: Simplify right side
    654,994.40x = 333,093,366,455.68
  5. Step 5: Solve for x
    x = 333,093,366,455.68/654,994.40
  6. Step 6: Final answer
    x = 508,543.84

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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.