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Finding the Fourth Proportional to 525,403.88, 725,005 and 295,954.77

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Solution

The fourth proportional to 525,403.88, 725,005 and 295,954.77 is: 408,388.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,403.88 : 725,005 = 295,954.77 : x
  2. Step 2: Convert to fraction form
    525,403.88/725,005 = 295,954.77/x
  3. Step 3: Cross multiply
    525,403.88x = 725,005 × 295,954.77
  4. Step 4: Simplify right side
    525,403.88x = 214,568,688,023.85
  5. Step 5: Solve for x
    x = 214,568,688,023.85/525,403.88
  6. Step 6: Final answer
    x = 408,388.09

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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.