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Finding the Fourth Proportional to 658,994.13, 987,362.60 and 359,684.82

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Solution

The fourth proportional to 658,994.13, 987,362.60 and 359,684.82 is: 538,911.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,994.13 : 987,362.60 = 359,684.82 : x
  2. Step 2: Convert to fraction form
    658,994.13/987,362.60 = 359,684.82/x
  3. Step 3: Cross multiply
    658,994.13x = 987,362.60 × 359,684.82
  4. Step 4: Simplify right side
    658,994.13x = 355,139,337,257.31
  5. Step 5: Solve for x
    x = 355,139,337,257.31/658,994.13
  6. Step 6: Final answer
    x = 538,911.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.