Home / 740,375.64-1,111,007.70-319,651.02

Finding the Fourth Proportional to 740,375.64, 1,111,007.70 and 319,651.02

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Solution

The fourth proportional to 740,375.64, 1,111,007.70 and 319,651.02 is: 479,668.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,375.64 : 1,111,007.70 = 319,651.02 : x
  2. Step 2: Convert to fraction form
    740,375.64/1,111,007.70 = 319,651.02/x
  3. Step 3: Cross multiply
    740,375.64x = 1,111,007.70 × 319,651.02
  4. Step 4: Simplify right side
    740,375.64x = 355,134,744,532.85
  5. Step 5: Solve for x
    x = 355,134,744,532.85/740,375.64
  6. Step 6: Final answer
    x = 479,668.33

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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.