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Finding the Fourth Proportional to 560,435.40, 839,729.70 and 323,364.60

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Solution

The fourth proportional to 560,435.40, 839,729.70 and 323,364.60 is: 484,514.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,435.40 : 839,729.70 = 323,364.60 : x
  2. Step 2: Convert to fraction form
    560,435.40/839,729.70 = 323,364.60/x
  3. Step 3: Cross multiply
    560,435.40x = 839,729.70 × 323,364.60
  4. Step 4: Simplify right side
    560,435.40x = 271,538,858,548.62
  5. Step 5: Solve for x
    x = 271,538,858,548.62/560,435.40
  6. Step 6: Final answer
    x = 484,514.11

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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.