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Finding the Fourth Proportional to 504,885.09, 696,741.37 and 278,530.59

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Solution

The fourth proportional to 504,885.09, 696,741.37 and 278,530.59 is: 384,372.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,885.09 : 696,741.37 = 278,530.59 : x
  2. Step 2: Convert to fraction form
    504,885.09/696,741.37 = 278,530.59/x
  3. Step 3: Cross multiply
    504,885.09x = 696,741.37 × 278,530.59
  4. Step 4: Simplify right side
    504,885.09x = 194,063,784,863.51
  5. Step 5: Solve for x
    x = 194,063,784,863.51/504,885.09
  6. Step 6: Final answer
    x = 384,372.18

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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.