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Finding the Fourth Proportional to 665,655.15, 998,482.73 and 665,655.15

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Solution

The fourth proportional to 665,655.15, 998,482.73 and 665,655.15 is: 998,482.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,655.15 : 998,482.73 = 665,655.15 : x
  2. Step 2: Convert to fraction form
    665,655.15/998,482.73 = 665,655.15/x
  3. Step 3: Cross multiply
    665,655.15x = 998,482.73 × 665,655.15
  4. Step 4: Simplify right side
    665,655.15x = 664,645,168,082.28
  5. Step 5: Solve for x
    x = 664,645,168,082.28/665,655.15
  6. Step 6: Final answer
    x = 998,482.73

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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.