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Finding the Fourth Proportional to 807,875.88, 1,114,817.94 and 445,279.74

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Solution

The fourth proportional to 807,875.88, 1,114,817.94 and 445,279.74 is: 614,458.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,875.88 : 1,114,817.94 = 445,279.74 : x
  2. Step 2: Convert to fraction form
    807,875.88/1,114,817.94 = 445,279.74/x
  3. Step 3: Cross multiply
    807,875.88x = 1,114,817.94 × 445,279.74
  4. Step 4: Simplify right side
    807,875.88x = 496,405,842,470.54
  5. Step 5: Solve for x
    x = 496,405,842,470.54/807,875.88
  6. Step 6: Final answer
    x = 614,458.06

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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.