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Finding the Fourth Proportional to 607,431.70, 911,256.90 and 252,481.60

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Solution

The fourth proportional to 607,431.70, 911,256.90 and 252,481.60 is: 378,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,431.70 : 911,256.90 = 252,481.60 : x
  2. Step 2: Convert to fraction form
    607,431.70/911,256.90 = 252,481.60/x
  3. Step 3: Cross multiply
    607,431.70x = 911,256.90 × 252,481.60
  4. Step 4: Simplify right side
    607,431.70x = 230,075,600,123.04
  5. Step 5: Solve for x
    x = 230,075,600,123.04/607,431.70
  6. Step 6: Final answer
    x = 378,767.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.