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Finding the Fourth Proportional to 504,814.55, 696,632.94 and 278,460.05

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Solution

The fourth proportional to 504,814.55, 696,632.94 and 278,460.05 is: 384,268.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,814.55 : 696,632.94 = 278,460.05 : x
  2. Step 2: Convert to fraction form
    504,814.55/696,632.94 = 278,460.05/x
  3. Step 3: Cross multiply
    504,814.55x = 696,632.94 × 278,460.05
  4. Step 4: Simplify right side
    504,814.55x = 193,984,439,820.88
  5. Step 5: Solve for x
    x = 193,984,439,820.88/504,814.55
  6. Step 6: Final answer
    x = 384,268.72

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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.