Home / 286,521.76-428,589.24-265,264.12

Finding the Fourth Proportional to 286,521.76, 428,589.24 and 265,264.12

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Solution

The fourth proportional to 286,521.76, 428,589.24 and 265,264.12 is: 396,791.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,521.76 : 428,589.24 = 265,264.12 : x
  2. Step 2: Convert to fraction form
    286,521.76/428,589.24 = 265,264.12/x
  3. Step 3: Cross multiply
    286,521.76x = 428,589.24 × 265,264.12
  4. Step 4: Simplify right side
    286,521.76x = 113,689,347,590.07
  5. Step 5: Solve for x
    x = 113,689,347,590.07/286,521.76
  6. Step 6: Final answer
    x = 396,791.32

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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.