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Finding the Fourth Proportional to 622,520.40, 933,780.60 and 498,104.40

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Solution

The fourth proportional to 622,520.40, 933,780.60 and 498,104.40 is: 747,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,520.40 : 933,780.60 = 498,104.40 : x
  2. Step 2: Convert to fraction form
    622,520.40/933,780.60 = 498,104.40/x
  3. Step 3: Cross multiply
    622,520.40x = 933,780.60 × 498,104.40
  4. Step 4: Simplify right side
    622,520.40x = 465,120,225,494.64
  5. Step 5: Solve for x
    x = 465,120,225,494.64/622,520.40
  6. Step 6: Final answer
    x = 747,156.60

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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.