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Finding the Fourth Proportional to 536,130.05, 740,025.54 and 345,143.44

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Solution

The fourth proportional to 536,130.05, 740,025.54 and 345,143.44 is: 476,404.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,130.05 : 740,025.54 = 345,143.44 : x
  2. Step 2: Convert to fraction form
    536,130.05/740,025.54 = 345,143.44/x
  3. Step 3: Cross multiply
    536,130.05x = 740,025.54 × 345,143.44
  4. Step 4: Simplify right side
    536,130.05x = 255,414,958,713.39
  5. Step 5: Solve for x
    x = 255,414,958,713.39/536,130.05
  6. Step 6: Final answer
    x = 476,404.86

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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.