Home / 790,616.21-1,186,145.74-317,633.72

Finding the Fourth Proportional to 790,616.21, 1,186,145.74 and 317,633.72

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Solution

The fourth proportional to 790,616.21, 1,186,145.74 and 317,633.72 is: 476,539.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,616.21 : 1,186,145.74 = 317,633.72 : x
  2. Step 2: Convert to fraction form
    790,616.21/1,186,145.74 = 317,633.72/x
  3. Step 3: Cross multiply
    790,616.21x = 1,186,145.74 × 317,633.72
  4. Step 4: Simplify right side
    790,616.21x = 376,759,878,324.67
  5. Step 5: Solve for x
    x = 376,759,878,324.67/790,616.21
  6. Step 6: Final answer
    x = 476,539.53

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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.