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Finding the Fourth Proportional to 663,102.40, 993,487.20 and 544,129.60

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Solution

The fourth proportional to 663,102.40, 993,487.20 and 544,129.60 is: 815,237.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,102.40 : 993,487.20 = 544,129.60 : x
  2. Step 2: Convert to fraction form
    663,102.40/993,487.20 = 544,129.60/x
  3. Step 3: Cross multiply
    663,102.40x = 993,487.20 × 544,129.60
  4. Step 4: Simplify right side
    663,102.40x = 540,585,792,741.12
  5. Step 5: Solve for x
    x = 540,585,792,741.12/663,102.40
  6. Step 6: Final answer
    x = 815,237.27

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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.