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Finding the Fourth Proportional to 612,994.66, 919,482.75 and 275,797.18

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Solution

The fourth proportional to 612,994.66, 919,482.75 and 275,797.18 is: 413,691.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,994.66 : 919,482.75 = 275,797.18 : x
  2. Step 2: Convert to fraction form
    612,994.66/919,482.75 = 275,797.18/x
  3. Step 3: Cross multiply
    612,994.66x = 919,482.75 × 275,797.18
  4. Step 4: Simplify right side
    612,994.66x = 253,590,749,508.65
  5. Step 5: Solve for x
    x = 253,590,749,508.65/612,994.66
  6. Step 6: Final answer
    x = 413,691.61

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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.