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Finding the Fourth Proportional to 472,164.20, 708,246.30 and 313,879.40

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Solution

The fourth proportional to 472,164.20, 708,246.30 and 313,879.40 is: 470,819.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,164.20 : 708,246.30 = 313,879.40 : x
  2. Step 2: Convert to fraction form
    472,164.20/708,246.30 = 313,879.40/x
  3. Step 3: Cross multiply
    472,164.20x = 708,246.30 × 313,879.40
  4. Step 4: Simplify right side
    472,164.20x = 222,303,923,696.22
  5. Step 5: Solve for x
    x = 222,303,923,696.22/472,164.20
  6. Step 6: Final answer
    x = 470,819.10

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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.