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Finding the Fourth Proportional to 665,222.08, 998,170.08 and 291,248.32

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Solution

The fourth proportional to 665,222.08, 998,170.08 and 291,248.32 is: 437,020.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,222.08 : 998,170.08 = 291,248.32 : x
  2. Step 2: Convert to fraction form
    665,222.08/998,170.08 = 291,248.32/x
  3. Step 3: Cross multiply
    665,222.08x = 998,170.08 × 291,248.32
  4. Step 4: Simplify right side
    665,222.08x = 290,715,358,874.27
  5. Step 5: Solve for x
    x = 290,715,358,874.27/665,222.08
  6. Step 6: Final answer
    x = 437,020.01

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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.