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Finding the Fourth Proportional to 622,419.40, 933,629.10 and 498,003.40

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Solution

The fourth proportional to 622,419.40, 933,629.10 and 498,003.40 is: 747,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,419.40 : 933,629.10 = 498,003.40 : x
  2. Step 2: Convert to fraction form
    622,419.40/933,629.10 = 498,003.40/x
  3. Step 3: Cross multiply
    622,419.40x = 933,629.10 × 498,003.40
  4. Step 4: Simplify right side
    622,419.40x = 464,950,466,138.94
  5. Step 5: Solve for x
    x = 464,950,466,138.94/622,419.40
  6. Step 6: Final answer
    x = 747,005.10

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Double scale
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Similar ratio
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1.5x scale

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.