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Finding the Fourth Proportional to 579,893.40, 800,243.10 and 325,239.12

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Solution

The fourth proportional to 579,893.40, 800,243.10 and 325,239.12 is: 448,824.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,893.40 : 800,243.10 = 325,239.12 : x
  2. Step 2: Convert to fraction form
    579,893.40/800,243.10 = 325,239.12/x
  3. Step 3: Cross multiply
    579,893.40x = 800,243.10 × 325,239.12
  4. Step 4: Simplify right side
    579,893.40x = 260,270,361,630.07
  5. Step 5: Solve for x
    x = 260,270,361,630.07/579,893.40
  6. Step 6: Final answer
    x = 448,824.49

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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.