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Finding the Fourth Proportional to 525,513.22, 725,222.77 and 321,560.48

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Solution

The fourth proportional to 525,513.22, 725,222.77 and 321,560.48 is: 443,762.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,513.22 : 725,222.77 = 321,560.48 : x
  2. Step 2: Convert to fraction form
    525,513.22/725,222.77 = 321,560.48/x
  3. Step 3: Cross multiply
    525,513.22x = 725,222.77 × 321,560.48
  4. Step 4: Simplify right side
    525,513.22x = 233,202,983,037.29
  5. Step 5: Solve for x
    x = 233,202,983,037.29/525,513.22
  6. Step 6: Final answer
    x = 443,762.36

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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.