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Finding the Fourth Proportional to 553,604.90, 830,669.78 and 329,408.24

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Solution

The fourth proportional to 553,604.90, 830,669.78 and 329,408.24 is: 494,268.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,604.90 : 830,669.78 = 329,408.24 : x
  2. Step 2: Convert to fraction form
    553,604.90/830,669.78 = 329,408.24/x
  3. Step 3: Cross multiply
    553,604.90x = 830,669.78 × 329,408.24
  4. Step 4: Simplify right side
    553,604.90x = 273,629,466,921.16
  5. Step 5: Solve for x
    x = 273,629,466,921.16/553,604.90
  6. Step 6: Final answer
    x = 494,268.51

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1.5x scale

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.