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Finding the Fourth Proportional to 646,876.10, 970,314.15 and 366,940.10

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Solution

The fourth proportional to 646,876.10, 970,314.15 and 366,940.10 is: 550,410.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,876.10 : 970,314.15 = 366,940.10 : x
  2. Step 2: Convert to fraction form
    646,876.10/970,314.15 = 366,940.10/x
  3. Step 3: Cross multiply
    646,876.10x = 970,314.15 × 366,940.10
  4. Step 4: Simplify right side
    646,876.10x = 356,047,171,232.42
  5. Step 5: Solve for x
    x = 356,047,171,232.42/646,876.10
  6. Step 6: Final answer
    x = 550,410.15

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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.