Home / 646,919.10-970,378.65-366,983.10

Finding the Fourth Proportional to 646,919.10, 970,378.65 and 366,983.10

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Solution

The fourth proportional to 646,919.10, 970,378.65 and 366,983.10 is: 550,474.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,919.10 : 970,378.65 = 366,983.10 : x
  2. Step 2: Convert to fraction form
    646,919.10/970,378.65 = 366,983.10/x
  3. Step 3: Cross multiply
    646,919.10x = 970,378.65 × 366,983.10
  4. Step 4: Simplify right side
    646,919.10x = 356,112,565,150.82
  5. Step 5: Solve for x
    x = 356,112,565,150.82/646,919.10
  6. Step 6: Final answer
    x = 550,474.65

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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.