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Finding the Fourth Proportional to 665,500.50, 998,484.03 and 291,552.66

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Solution

The fourth proportional to 665,500.50, 998,484.03 and 291,552.66 is: 437,431.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,500.50 : 998,484.03 = 291,552.66 : x
  2. Step 2: Convert to fraction form
    665,500.50/998,484.03 = 291,552.66/x
  3. Step 3: Cross multiply
    665,500.50x = 998,484.03 × 291,552.66
  4. Step 4: Simplify right side
    665,500.50x = 291,110,674,914.02
  5. Step 5: Solve for x
    x = 291,110,674,914.02/665,500.50
  6. Step 6: Final answer
    x = 437,431.19

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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.