Home / 857,191.33-1,285,814.25-317,582.74

Finding the Fourth Proportional to 857,191.33, 1,285,814.25 and 317,582.74

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Solution

The fourth proportional to 857,191.33, 1,285,814.25 and 317,582.74 is: 476,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,191.33 : 1,285,814.25 = 317,582.74 : x
  2. Step 2: Convert to fraction form
    857,191.33/1,285,814.25 = 317,582.74/x
  3. Step 3: Cross multiply
    857,191.33x = 1,285,814.25 × 317,582.74
  4. Step 4: Simplify right side
    857,191.33x = 408,352,414,253.31
  5. Step 5: Solve for x
    x = 408,352,414,253.31/857,191.33
  6. Step 6: Final answer
    x = 476,384.21

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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.