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Finding the Fourth Proportional to 646,891.60, 970,337.40 and 366,955.60

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Solution

The fourth proportional to 646,891.60, 970,337.40 and 366,955.60 is: 550,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,891.60 : 970,337.40 = 366,955.60 : x
  2. Step 2: Convert to fraction form
    646,891.60/970,337.40 = 366,955.60/x
  3. Step 3: Cross multiply
    646,891.60x = 970,337.40 × 366,955.60
  4. Step 4: Simplify right side
    646,891.60x = 356,070,742,819.44
  5. Step 5: Solve for x
    x = 356,070,742,819.44/646,891.60
  6. Step 6: Final answer
    x = 550,433.40

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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.