Home / 759,209.06-1,138,658.67-279,271.91

Finding the Fourth Proportional to 759,209.06, 1,138,658.67 and 279,271.91

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Solution

The fourth proportional to 759,209.06, 1,138,658.67 and 279,271.91 is: 418,850.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,209.06 : 1,138,658.67 = 279,271.91 : x
  2. Step 2: Convert to fraction form
    759,209.06/1,138,658.67 = 279,271.91/x
  3. Step 3: Cross multiply
    759,209.06x = 1,138,658.67 × 279,271.91
  4. Step 4: Simplify right side
    759,209.06x = 317,995,375,915.67
  5. Step 5: Solve for x
    x = 317,995,375,915.67/759,209.06
  6. Step 6: Final answer
    x = 418,850.87

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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.