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Finding the Fourth Proportional to 553,604.77, 830,669.60 and 329,408.11

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Solution

The fourth proportional to 553,604.77, 830,669.60 and 329,408.11 is: 494,268.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,604.77 : 830,669.60 = 329,408.11 : x
  2. Step 2: Convert to fraction form
    553,604.77/830,669.60 = 329,408.11/x
  3. Step 3: Cross multiply
    553,604.77x = 830,669.60 × 329,408.11
  4. Step 4: Simplify right side
    553,604.77x = 273,629,302,970.46
  5. Step 5: Solve for x
    x = 273,629,302,970.46/553,604.77
  6. Step 6: Final answer
    x = 494,268.33

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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.