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Finding the Fourth Proportional to 554,456.80, 830,302.80 and 443,864.80

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Solution

The fourth proportional to 554,456.80, 830,302.80 and 443,864.80 is: 664,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,456.80 : 830,302.80 = 443,864.80 : x
  2. Step 2: Convert to fraction form
    554,456.80/830,302.80 = 443,864.80/x
  3. Step 3: Cross multiply
    554,456.80x = 830,302.80 × 443,864.80
  4. Step 4: Simplify right side
    554,456.80x = 368,542,186,261.44
  5. Step 5: Solve for x
    x = 368,542,186,261.44/554,456.80
  6. Step 6: Final answer
    x = 664,690.53

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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.