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Finding the Fourth Proportional to 646,016.55, 968,311.20 and 266,728.17

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Solution

The fourth proportional to 646,016.55, 968,311.20 and 266,728.17 is: 399,797.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,016.55 : 968,311.20 = 266,728.17 : x
  2. Step 2: Convert to fraction form
    646,016.55/968,311.20 = 266,728.17/x
  3. Step 3: Cross multiply
    646,016.55x = 968,311.20 × 266,728.17
  4. Step 4: Simplify right side
    646,016.55x = 258,275,874,366.50
  5. Step 5: Solve for x
    x = 258,275,874,366.50/646,016.55
  6. Step 6: Final answer
    x = 399,797.61

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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.