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Finding the Fourth Proportional to 437,626.70, 656,440.05 and 260,042.30

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Solution

The fourth proportional to 437,626.70, 656,440.05 and 260,042.30 is: 390,063.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,626.70 : 656,440.05 = 260,042.30 : x
  2. Step 2: Convert to fraction form
    437,626.70/656,440.05 = 260,042.30/x
  3. Step 3: Cross multiply
    437,626.70x = 656,440.05 × 260,042.30
  4. Step 4: Simplify right side
    437,626.70x = 170,702,180,414.12
  5. Step 5: Solve for x
    x = 170,702,180,414.12/437,626.70
  6. Step 6: Final answer
    x = 390,063.45

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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.