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Finding the Fourth Proportional to 647,253.06, 970,880.27 and 349,626.05

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Solution

The fourth proportional to 647,253.06, 970,880.27 and 349,626.05 is: 524,439.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,253.06 : 970,880.27 = 349,626.05 : x
  2. Step 2: Convert to fraction form
    647,253.06/970,880.27 = 349,626.05/x
  3. Step 3: Cross multiply
    647,253.06x = 970,880.27 × 349,626.05
  4. Step 4: Simplify right side
    647,253.06x = 339,445,033,823.03
  5. Step 5: Solve for x
    x = 339,445,033,823.03/647,253.06
  6. Step 6: Final answer
    x = 524,439.44

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Double scale
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Similar ratio
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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.