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Finding the Fourth Proportional to 655,481.81, 903,841.92 and 448,784.22

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Solution

The fourth proportional to 655,481.81, 903,841.92 and 448,784.22 is: 618,827.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,481.81 : 903,841.92 = 448,784.22 : x
  2. Step 2: Convert to fraction form
    655,481.81/903,841.92 = 448,784.22/x
  3. Step 3: Cross multiply
    655,481.81x = 903,841.92 × 448,784.22
  4. Step 4: Simplify right side
    655,481.81x = 405,629,991,070.50
  5. Step 5: Solve for x
    x = 405,629,991,070.50/655,481.81
  6. Step 6: Final answer
    x = 618,827.23

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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.