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Finding the Fourth Proportional to 545,751.45, 747,682.22 and 525,297.30

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Solution

The fourth proportional to 545,751.45, 747,682.22 and 525,297.30 is: 719,659.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,751.45 : 747,682.22 = 525,297.30 : x
  2. Step 2: Convert to fraction form
    545,751.45/747,682.22 = 525,297.30/x
  3. Step 3: Cross multiply
    545,751.45x = 747,682.22 × 525,297.30
  4. Step 4: Simplify right side
    545,751.45x = 392,755,448,797.52
  5. Step 5: Solve for x
    x = 392,755,448,797.52/545,751.45
  6. Step 6: Final answer
    x = 719,659.93

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.