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Finding the Fourth Proportional to 557,642.07, 836,481.30 and 265,458.50

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Solution

The fourth proportional to 557,642.07, 836,481.30 and 265,458.50 is: 398,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,642.07 : 836,481.30 = 265,458.50 : x
  2. Step 2: Convert to fraction form
    557,642.07/836,481.30 = 265,458.50/x
  3. Step 3: Cross multiply
    557,642.07x = 836,481.30 × 265,458.50
  4. Step 4: Simplify right side
    557,642.07x = 222,051,066,993.64
  5. Step 5: Solve for x
    x = 222,051,066,993.64/557,642.07
  6. Step 6: Final answer
    x = 398,196.40

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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.