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Finding the Fourth Proportional to 504,948.87, 696,810.20 and 278,594.37

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Solution

The fourth proportional to 504,948.87, 696,810.20 and 278,594.37 is: 384,449.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,948.87 : 696,810.20 = 278,594.37 : x
  2. Step 2: Convert to fraction form
    504,948.87/696,810.20 = 278,594.37/x
  3. Step 3: Cross multiply
    504,948.87x = 696,810.20 × 278,594.37
  4. Step 4: Simplify right side
    504,948.87x = 194,127,397,285.60
  5. Step 5: Solve for x
    x = 194,127,397,285.60/504,948.87
  6. Step 6: Final answer
    x = 384,449.61

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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.