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Finding the Fourth Proportional to 553,507.53, 830,577.02 and 216,575.61

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Solution

The fourth proportional to 553,507.53, 830,577.02 and 216,575.61 is: 324,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,507.53 : 830,577.02 = 216,575.61 : x
  2. Step 2: Convert to fraction form
    553,507.53/830,577.02 = 216,575.61/x
  3. Step 3: Cross multiply
    553,507.53x = 830,577.02 × 216,575.61
  4. Step 4: Simplify right side
    553,507.53x = 179,882,723,675.60
  5. Step 5: Solve for x
    x = 179,882,723,675.60/553,507.53
  6. Step 6: Final answer
    x = 324,986.95

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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.