Home / 808,960.38-1,213,596.63-310,285.50

Finding the Fourth Proportional to 808,960.38, 1,213,596.63 and 310,285.50

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Solution

The fourth proportional to 808,960.38, 1,213,596.63 and 310,285.50 is: 465,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,960.38 : 1,213,596.63 = 310,285.50 : x
  2. Step 2: Convert to fraction form
    808,960.38/1,213,596.63 = 310,285.50/x
  3. Step 3: Cross multiply
    808,960.38x = 1,213,596.63 × 310,285.50
  4. Step 4: Simplify right side
    808,960.38x = 376,561,437,137.87
  5. Step 5: Solve for x
    x = 376,561,437,137.87/808,960.38
  6. Step 6: Final answer
    x = 465,488.11

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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.