Home / 727,145.64-1,091,216.62-253,830.92

Finding the Fourth Proportional to 727,145.64, 1,091,216.62 and 253,830.92

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Solution

The fourth proportional to 727,145.64, 1,091,216.62 and 253,830.92 is: 380,920.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,145.64 : 1,091,216.62 = 253,830.92 : x
  2. Step 2: Convert to fraction form
    727,145.64/1,091,216.62 = 253,830.92/x
  3. Step 3: Cross multiply
    727,145.64x = 1,091,216.62 × 253,830.92
  4. Step 4: Simplify right side
    727,145.64x = 276,984,514,576.69
  5. Step 5: Solve for x
    x = 276,984,514,576.69/727,145.64
  6. Step 6: Final answer
    x = 380,920.27

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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.