Home / 857,192.33-1,285,815.75-317,583.74

Finding the Fourth Proportional to 857,192.33, 1,285,815.75 and 317,583.74

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Solution

The fourth proportional to 857,192.33, 1,285,815.75 and 317,583.74 is: 476,385.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,192.33 : 1,285,815.75 = 317,583.74 : x
  2. Step 2: Convert to fraction form
    857,192.33/1,285,815.75 = 317,583.74/x
  3. Step 3: Cross multiply
    857,192.33x = 1,285,815.75 × 317,583.74
  4. Step 4: Simplify right side
    857,192.33x = 408,354,174,835.91
  5. Step 5: Solve for x
    x = 408,354,174,835.91/857,192.33
  6. Step 6: Final answer
    x = 476,385.71

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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.