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Finding the Fourth Proportional to 607,079.70, 910,728.90 and 252,129.60

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Solution

The fourth proportional to 607,079.70, 910,728.90 and 252,129.60 is: 378,239.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,079.70 : 910,728.90 = 252,129.60 : x
  2. Step 2: Convert to fraction form
    607,079.70/910,728.90 = 252,129.60/x
  3. Step 3: Cross multiply
    607,079.70x = 910,728.90 × 252,129.60
  4. Step 4: Simplify right side
    607,079.70x = 229,621,713,265.44
  5. Step 5: Solve for x
    x = 229,621,713,265.44/607,079.70
  6. Step 6: Final answer
    x = 378,239.81

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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.