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Finding the Fourth Proportional to 611,990.91, 844,530.66 and 340,051.82

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Solution

The fourth proportional to 611,990.91, 844,530.66 and 340,051.82 is: 469,262.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,990.91 : 844,530.66 = 340,051.82 : x
  2. Step 2: Convert to fraction form
    611,990.91/844,530.66 = 340,051.82/x
  3. Step 3: Cross multiply
    611,990.91x = 844,530.66 × 340,051.82
  4. Step 4: Simplify right side
    611,990.91x = 287,184,185,243.88
  5. Step 5: Solve for x
    x = 287,184,185,243.88/611,990.91
  6. Step 6: Final answer
    x = 469,262.17

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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.