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Finding the Fourth Proportional to 579,951, 800,330.74 and 321,866.92

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Solution

The fourth proportional to 579,951, 800,330.74 and 321,866.92 is: 444,175.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,951 : 800,330.74 = 321,866.92 : x
  2. Step 2: Convert to fraction form
    579,951/800,330.74 = 321,866.92/x
  3. Step 3: Cross multiply
    579,951x = 800,330.74 × 321,866.92
  4. Step 4: Simplify right side
    579,951x = 257,599,990,265.12
  5. Step 5: Solve for x
    x = 257,599,990,265.12/579,951
  6. Step 6: Final answer
    x = 444,175.44

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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.