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Finding the Fourth Proportional to 546,701.40, 819,663.30 and 209,611.80

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Solution

The fourth proportional to 546,701.40, 819,663.30 and 209,611.80 is: 314,268.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,701.40 : 819,663.30 = 209,611.80 : x
  2. Step 2: Convert to fraction form
    546,701.40/819,663.30 = 209,611.80/x
  3. Step 3: Cross multiply
    546,701.40x = 819,663.30 × 209,611.80
  4. Step 4: Simplify right side
    546,701.40x = 171,811,099,706.94
  5. Step 5: Solve for x
    x = 171,811,099,706.94/546,701.40
  6. Step 6: Final answer
    x = 314,268.63

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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.