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Finding the Fourth Proportional to 646,908.10, 970,362.15 and 366,972.10

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Solution

The fourth proportional to 646,908.10, 970,362.15 and 366,972.10 is: 550,458.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,908.10 : 970,362.15 = 366,972.10 : x
  2. Step 2: Convert to fraction form
    646,908.10/970,362.15 = 366,972.10/x
  3. Step 3: Cross multiply
    646,908.10x = 970,362.15 × 366,972.10
  4. Step 4: Simplify right side
    646,908.10x = 356,095,835,946.02
  5. Step 5: Solve for x
    x = 356,095,835,946.02/646,908.10
  6. Step 6: Final answer
    x = 550,458.15

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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.