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Finding the Fourth Proportional to 622,513.40, 933,770.10 and 307,585.40

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Solution

The fourth proportional to 622,513.40, 933,770.10 and 307,585.40 is: 461,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,513.40 : 933,770.10 = 307,585.40 : x
  2. Step 2: Convert to fraction form
    622,513.40/933,770.10 = 307,585.40/x
  3. Step 3: Cross multiply
    622,513.40x = 933,770.10 × 307,585.40
  4. Step 4: Simplify right side
    622,513.40x = 287,214,049,716.54
  5. Step 5: Solve for x
    x = 287,214,049,716.54/622,513.40
  6. Step 6: Final answer
    x = 461,378.10

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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.