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Finding the Fourth Proportional to 540,009.48, 745,198.62 and 298,286.88

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Solution

The fourth proportional to 540,009.48, 745,198.62 and 298,286.88 is: 411,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,009.48 : 745,198.62 = 298,286.88 : x
  2. Step 2: Convert to fraction form
    540,009.48/745,198.62 = 298,286.88/x
  3. Step 3: Cross multiply
    540,009.48x = 745,198.62 × 298,286.88
  4. Step 4: Simplify right side
    540,009.48x = 222,282,971,340.11
  5. Step 5: Solve for x
    x = 222,282,971,340.11/540,009.48
  6. Step 6: Final answer
    x = 411,627.91

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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.