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Finding the Fourth Proportional to 644,625.60, 966,938.40 and 541,982.40

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Solution

The fourth proportional to 644,625.60, 966,938.40 and 541,982.40 is: 812,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,625.60 : 966,938.40 = 541,982.40 : x
  2. Step 2: Convert to fraction form
    644,625.60/966,938.40 = 541,982.40/x
  3. Step 3: Cross multiply
    644,625.60x = 966,938.40 × 541,982.40
  4. Step 4: Simplify right side
    644,625.60x = 524,063,594,684.16
  5. Step 5: Solve for x
    x = 524,063,594,684.16/644,625.60
  6. Step 6: Final answer
    x = 812,973.60

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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.