Home / 857,349.40-1,286,024.46-317,791.24

Finding the Fourth Proportional to 857,349.40, 1,286,024.46 and 317,791.24

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Solution

The fourth proportional to 857,349.40, 1,286,024.46 and 317,791.24 is: 476,686.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,349.40 : 1,286,024.46 = 317,791.24 : x
  2. Step 2: Convert to fraction form
    857,349.40/1,286,024.46 = 317,791.24/x
  3. Step 3: Cross multiply
    857,349.40x = 1,286,024.46 × 317,791.24
  4. Step 4: Simplify right side
    857,349.40x = 408,687,307,813.73
  5. Step 5: Solve for x
    x = 408,687,307,813.73/857,349.40
  6. Step 6: Final answer
    x = 476,686.99

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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.