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Finding the Fourth Proportional to 540,396.08, 745,785.20 and 298,673.46

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Solution

The fourth proportional to 540,396.08, 745,785.20 and 298,673.46 is: 412,190.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,396.08 : 745,785.20 = 298,673.46 : x
  2. Step 2: Convert to fraction form
    540,396.08/745,785.20 = 298,673.46/x
  3. Step 3: Cross multiply
    540,396.08x = 745,785.20 × 298,673.46
  4. Step 4: Simplify right side
    540,396.08x = 222,746,246,100.79
  5. Step 5: Solve for x
    x = 222,746,246,100.79/540,396.08
  6. Step 6: Final answer
    x = 412,190.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.