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Finding the Fourth Proportional to 522,675.84, 721,205.22 and 307,858.69

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Solution

The fourth proportional to 522,675.84, 721,205.22 and 307,858.69 is: 424,793.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,675.84 : 721,205.22 = 307,858.69 : x
  2. Step 2: Convert to fraction form
    522,675.84/721,205.22 = 307,858.69/x
  3. Step 3: Cross multiply
    522,675.84x = 721,205.22 × 307,858.69
  4. Step 4: Simplify right side
    522,675.84x = 222,029,294,250.36
  5. Step 5: Solve for x
    x = 222,029,294,250.36/522,675.84
  6. Step 6: Final answer
    x = 424,793.49

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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.