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Finding the Fourth Proportional to 437,506.56, 656,009.55 and 260,137.62

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Solution

The fourth proportional to 437,506.56, 656,009.55 and 260,137.62 is: 390,057.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,506.56 : 656,009.55 = 260,137.62 : x
  2. Step 2: Convert to fraction form
    437,506.56/656,009.55 = 260,137.62/x
  3. Step 3: Cross multiply
    437,506.56x = 656,009.55 × 260,137.62
  4. Step 4: Simplify right side
    437,506.56x = 170,652,763,034.27
  5. Step 5: Solve for x
    x = 170,652,763,034.27/437,506.56
  6. Step 6: Final answer
    x = 390,057.61

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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.