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Finding the Fourth Proportional to 591,477.82, 816,239.81 and 319,545.61

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Solution

The fourth proportional to 591,477.82, 816,239.81 and 319,545.61 is: 440,973.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,477.82 : 816,239.81 = 319,545.61 : x
  2. Step 2: Convert to fraction form
    591,477.82/816,239.81 = 319,545.61/x
  3. Step 3: Cross multiply
    591,477.82x = 816,239.81 × 319,545.61
  4. Step 4: Simplify right side
    591,477.82x = 260,825,846,751.00
  5. Step 5: Solve for x
    x = 260,825,846,751.00/591,477.82
  6. Step 6: Final answer
    x = 440,973.17

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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.