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Finding the Fourth Proportional to 655,055.70, 903,994.52 and 368,585.97

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Solution

The fourth proportional to 655,055.70, 903,994.52 and 368,585.97 is: 508,658.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,055.70 : 903,994.52 = 368,585.97 : x
  2. Step 2: Convert to fraction form
    655,055.70/903,994.52 = 368,585.97/x
  3. Step 3: Cross multiply
    655,055.70x = 903,994.52 × 368,585.97
  4. Step 4: Simplify right side
    655,055.70x = 333,199,697,028.88
  5. Step 5: Solve for x
    x = 333,199,697,028.88/655,055.70
  6. Step 6: Final answer
    x = 508,658.57

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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.