Home / 669,103.10-1,003,322.55-242,621.90

Finding the Fourth Proportional to 669,103.10, 1,003,322.55 and 242,621.90

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Solution

The fourth proportional to 669,103.10, 1,003,322.55 and 242,621.90 is: 363,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,103.10 : 1,003,322.55 = 242,621.90 : x
  2. Step 2: Convert to fraction form
    669,103.10/1,003,322.55 = 242,621.90/x
  3. Step 3: Cross multiply
    669,103.10x = 1,003,322.55 × 242,621.90
  4. Step 4: Simplify right side
    669,103.10x = 243,428,023,393.85
  5. Step 5: Solve for x
    x = 243,428,023,393.85/669,103.10
  6. Step 6: Final answer
    x = 363,812.43

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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.