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Finding the Fourth Proportional to 504,429.88, 696,117.93 and 278,083.48

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Solution

The fourth proportional to 504,429.88, 696,117.93 and 278,083.48 is: 383,757.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,429.88 : 696,117.93 = 278,083.48 : x
  2. Step 2: Convert to fraction form
    504,429.88/696,117.93 = 278,083.48/x
  3. Step 3: Cross multiply
    504,429.88x = 696,117.93 × 278,083.48
  4. Step 4: Simplify right side
    504,429.88x = 193,578,896,464.80
  5. Step 5: Solve for x
    x = 193,578,896,464.80/504,429.88
  6. Step 6: Final answer
    x = 383,757.79

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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.