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Finding the Fourth Proportional to 646,741.20, 970,549.20 and 362,431.20

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Solution

The fourth proportional to 646,741.20, 970,549.20 and 362,431.20 is: 543,891.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,741.20 : 970,549.20 = 362,431.20 : x
  2. Step 2: Convert to fraction form
    646,741.20/970,549.20 = 362,431.20/x
  3. Step 3: Cross multiply
    646,741.20x = 970,549.20 × 362,431.20
  4. Step 4: Simplify right side
    646,741.20x = 351,757,311,215.04
  5. Step 5: Solve for x
    x = 351,757,311,215.04/646,741.20
  6. Step 6: Final answer
    x = 543,891.92

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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.