Home / 738,351.27-1,018,924.79-398,819.52

Finding the Fourth Proportional to 738,351.27, 1,018,924.79 and 398,819.52

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Solution

The fourth proportional to 738,351.27, 1,018,924.79 and 398,819.52 is: 550,370.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,351.27 : 1,018,924.79 = 398,819.52 : x
  2. Step 2: Convert to fraction form
    738,351.27/1,018,924.79 = 398,819.52/x
  3. Step 3: Cross multiply
    738,351.27x = 1,018,924.79 × 398,819.52
  4. Step 4: Simplify right side
    738,351.27x = 406,367,099,208.26
  5. Step 5: Solve for x
    x = 406,367,099,208.26/738,351.27
  6. Step 6: Final answer
    x = 550,370.96

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1.5x scale

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.