Home / 857,354.45-1,286,031.98-317,796.23

Finding the Fourth Proportional to 857,354.45, 1,286,031.98 and 317,796.23

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Solution

The fourth proportional to 857,354.45, 1,286,031.98 and 317,796.23 is: 476,694.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,354.45 : 1,286,031.98 = 317,796.23 : x
  2. Step 2: Convert to fraction form
    857,354.45/1,286,031.98 = 317,796.23/x
  3. Step 3: Cross multiply
    857,354.45x = 1,286,031.98 × 317,796.23
  4. Step 4: Simplify right side
    857,354.45x = 408,696,118,913.01
  5. Step 5: Solve for x
    x = 408,696,118,913.01/857,354.45
  6. Step 6: Final answer
    x = 476,694.47

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Similar ratio
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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.