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Finding the Fourth Proportional to 657,704.70, 986,557.05 and 303,410.70

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Solution

The fourth proportional to 657,704.70, 986,557.05 and 303,410.70 is: 455,116.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,704.70 : 986,557.05 = 303,410.70 : x
  2. Step 2: Convert to fraction form
    657,704.70/986,557.05 = 303,410.70/x
  3. Step 3: Cross multiply
    657,704.70x = 986,557.05 × 303,410.70
  4. Step 4: Simplify right side
    657,704.70x = 299,331,965,130.44
  5. Step 5: Solve for x
    x = 299,331,965,130.44/657,704.70
  6. Step 6: Final answer
    x = 455,116.05

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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.