Home / 479,103.80-660,743.34-383,575.64

Finding the Fourth Proportional to 479,103.80, 660,743.34 and 383,575.64

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Solution

The fourth proportional to 479,103.80, 660,743.34 and 383,575.64 is: 528,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,103.80 : 660,743.34 = 383,575.64 : x
  2. Step 2: Convert to fraction form
    479,103.80/660,743.34 = 383,575.64/x
  3. Step 3: Cross multiply
    479,103.80x = 660,743.34 × 383,575.64
  4. Step 4: Simplify right side
    479,103.80x = 253,445,049,516.24
  5. Step 5: Solve for x
    x = 253,445,049,516.24/479,103.80
  6. Step 6: Final answer
    x = 528,998.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.