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Finding the Fourth Proportional to 668,773.95, 1,003,221.93 and 189,008.67

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Solution

The fourth proportional to 668,773.95, 1,003,221.93 and 189,008.67 is: 283,530.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,773.95 : 1,003,221.93 = 189,008.67 : x
  2. Step 2: Convert to fraction form
    668,773.95/1,003,221.93 = 189,008.67/x
  3. Step 3: Cross multiply
    668,773.95x = 1,003,221.93 × 189,008.67
  4. Step 4: Simplify right side
    668,773.95x = 189,617,642,704.13
  5. Step 5: Solve for x
    x = 189,617,642,704.13/668,773.95
  6. Step 6: Final answer
    x = 283,530.25

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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.