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Finding the Fourth Proportional to 504,359.48, 696,016.10 and 278,009.88

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Solution

The fourth proportional to 504,359.48, 696,016.10 and 278,009.88 is: 383,653.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,359.48 : 696,016.10 = 278,009.88 : x
  2. Step 2: Convert to fraction form
    504,359.48/696,016.10 = 278,009.88/x
  3. Step 3: Cross multiply
    504,359.48x = 696,016.10 × 278,009.88
  4. Step 4: Simplify right side
    504,359.48x = 193,499,352,439.07
  5. Step 5: Solve for x
    x = 193,499,352,439.07/504,359.48
  6. Step 6: Final answer
    x = 383,653.64

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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.