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Finding the Fourth Proportional to 505,803.90, 756,473.90 and 450,035.40

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Solution

The fourth proportional to 505,803.90, 756,473.90 and 450,035.40 is: 673,067.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,803.90 : 756,473.90 = 450,035.40 : x
  2. Step 2: Convert to fraction form
    505,803.90/756,473.90 = 450,035.40/x
  3. Step 3: Cross multiply
    505,803.90x = 756,473.90 × 450,035.40
  4. Step 4: Simplify right side
    505,803.90x = 340,440,031,925.88
  5. Step 5: Solve for x
    x = 340,440,031,925.88/505,803.90
  6. Step 6: Final answer
    x = 673,067.23

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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.