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Finding the Fourth Proportional to 628,759.60, 943,139.40 and 202,294.60

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Solution

The fourth proportional to 628,759.60, 943,139.40 and 202,294.60 is: 303,441.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,759.60 : 943,139.40 = 202,294.60 : x
  2. Step 2: Convert to fraction form
    628,759.60/943,139.40 = 202,294.60/x
  3. Step 3: Cross multiply
    628,759.60x = 943,139.40 × 202,294.60
  4. Step 4: Simplify right side
    628,759.60x = 190,792,007,667.24
  5. Step 5: Solve for x
    x = 190,792,007,667.24/628,759.60
  6. Step 6: Final answer
    x = 303,441.90

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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.