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Finding the Fourth Proportional to 807,703.85, 1,114,578.53 and 445,127.81

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Solution

The fourth proportional to 807,703.85, 1,114,578.53 and 445,127.81 is: 614,247.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,703.85 : 1,114,578.53 = 445,127.81 : x
  2. Step 2: Convert to fraction form
    807,703.85/1,114,578.53 = 445,127.81/x
  3. Step 3: Cross multiply
    807,703.85x = 1,114,578.53 × 445,127.81
  4. Step 4: Simplify right side
    807,703.85x = 496,129,894,002.62
  5. Step 5: Solve for x
    x = 496,129,894,002.62/807,703.85
  6. Step 6: Final answer
    x = 614,247.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.