Home / 790,604.25-1,186,128.09-317,621.76

Finding the Fourth Proportional to 790,604.25, 1,186,128.09 and 317,621.76

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Solution

The fourth proportional to 790,604.25, 1,186,128.09 and 317,621.76 is: 476,521.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,604.25 : 1,186,128.09 = 317,621.76 : x
  2. Step 2: Convert to fraction form
    790,604.25/1,186,128.09 = 317,621.76/x
  3. Step 3: Cross multiply
    790,604.25x = 1,186,128.09 × 317,621.76
  4. Step 4: Simplify right side
    790,604.25x = 376,740,091,531.24
  5. Step 5: Solve for x
    x = 376,740,091,531.24/790,604.25
  6. Step 6: Final answer
    x = 476,521.71

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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.