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Finding the Fourth Proportional to 554,464.80, 830,314.80 and 443,872.80

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Solution

The fourth proportional to 554,464.80, 830,314.80 and 443,872.80 is: 664,702.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,464.80 : 830,314.80 = 443,872.80 : x
  2. Step 2: Convert to fraction form
    554,464.80/830,314.80 = 443,872.80/x
  3. Step 3: Cross multiply
    554,464.80x = 830,314.80 × 443,872.80
  4. Step 4: Simplify right side
    554,464.80x = 368,554,155,157.44
  5. Step 5: Solve for x
    x = 368,554,155,157.44/554,464.80
  6. Step 6: Final answer
    x = 664,702.53

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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.