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Finding the Fourth Proportional to 575,466.80, 863,200.20 and 486,893.30

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Solution

The fourth proportional to 575,466.80, 863,200.20 and 486,893.30 is: 730,339.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,466.80 : 863,200.20 = 486,893.30 : x
  2. Step 2: Convert to fraction form
    575,466.80/863,200.20 = 486,893.30/x
  3. Step 3: Cross multiply
    575,466.80x = 863,200.20 × 486,893.30
  4. Step 4: Simplify right side
    575,466.80x = 420,286,393,938.66
  5. Step 5: Solve for x
    x = 420,286,393,938.66/575,466.80
  6. Step 6: Final answer
    x = 730,339.95

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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.