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Finding the Fourth Proportional to 657,460.40, 986,190.60 and 303,166.40

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Solution

The fourth proportional to 657,460.40, 986,190.60 and 303,166.40 is: 454,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,460.40 : 986,190.60 = 303,166.40 : x
  2. Step 2: Convert to fraction form
    657,460.40/986,190.60 = 303,166.40/x
  3. Step 3: Cross multiply
    657,460.40x = 986,190.60 × 303,166.40
  4. Step 4: Simplify right side
    657,460.40x = 298,979,853,915.84
  5. Step 5: Solve for x
    x = 298,979,853,915.84/657,460.40
  6. Step 6: Final answer
    x = 454,749.60

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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.