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Finding the Fourth Proportional to 547,435.87, 755,525.23 and 455,392.56

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Solution

The fourth proportional to 547,435.87, 755,525.23 and 455,392.56 is: 628,494.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,435.87 : 755,525.23 = 455,392.56 : x
  2. Step 2: Convert to fraction form
    547,435.87/755,525.23 = 455,392.56/x
  3. Step 3: Cross multiply
    547,435.87x = 755,525.23 × 455,392.56
  4. Step 4: Simplify right side
    547,435.87x = 344,060,567,156.26
  5. Step 5: Solve for x
    x = 344,060,567,156.26/547,435.87
  6. Step 6: Final answer
    x = 628,494.75

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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.