Home / 857,365.97-1,285,017.41-317,191.55

Finding the Fourth Proportional to 857,365.97, 1,285,017.41 and 317,191.55

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Solution

The fourth proportional to 857,365.97, 1,285,017.41 and 317,191.55 is: 475,405.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,365.97 : 1,285,017.41 = 317,191.55 : x
  2. Step 2: Convert to fraction form
    857,365.97/1,285,017.41 = 317,191.55/x
  3. Step 3: Cross multiply
    857,365.97x = 1,285,017.41 × 317,191.55
  4. Step 4: Simplify right side
    857,365.97x = 407,596,658,422.78
  5. Step 5: Solve for x
    x = 407,596,658,422.78/857,365.97
  6. Step 6: Final answer
    x = 475,405.69

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1.5x scale

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.