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Finding the Fourth Proportional to 807,808.74, 1,114,770.48 and 445,232.80

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Solution

The fourth proportional to 807,808.74, 1,114,770.48 and 445,232.80 is: 614,418.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,808.74 : 1,114,770.48 = 445,232.80 : x
  2. Step 2: Convert to fraction form
    807,808.74/1,114,770.48 = 445,232.80/x
  3. Step 3: Cross multiply
    807,808.74x = 1,114,770.48 × 445,232.80
  4. Step 4: Simplify right side
    807,808.74x = 496,332,376,593.89
  5. Step 5: Solve for x
    x = 496,332,376,593.89/807,808.74
  6. Step 6: Final answer
    x = 614,418.18

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1.5x scale

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.