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Finding the Fourth Proportional to 646,911.10, 970,366.65 and 366,975.10

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Solution

The fourth proportional to 646,911.10, 970,366.65 and 366,975.10 is: 550,462.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,911.10 : 970,366.65 = 366,975.10 : x
  2. Step 2: Convert to fraction form
    646,911.10/970,366.65 = 366,975.10/x
  3. Step 3: Cross multiply
    646,911.10x = 970,366.65 × 366,975.10
  4. Step 4: Simplify right side
    646,911.10x = 356,100,398,420.42
  5. Step 5: Solve for x
    x = 356,100,398,420.42/646,911.10
  6. Step 6: Final answer
    x = 550,462.65

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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.