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Finding the Fourth Proportional to 646,847.80, 970,271.70 and 362,246.20

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Solution

The fourth proportional to 646,847.80, 970,271.70 and 362,246.20 is: 543,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,847.80 : 970,271.70 = 362,246.20 : x
  2. Step 2: Convert to fraction form
    646,847.80/970,271.70 = 362,246.20/x
  3. Step 3: Cross multiply
    646,847.80x = 970,271.70 × 362,246.20
  4. Step 4: Simplify right side
    646,847.80x = 351,477,236,292.54
  5. Step 5: Solve for x
    x = 351,477,236,292.54/646,847.80
  6. Step 6: Final answer
    x = 543,369.30

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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.