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Finding the Fourth Proportional to 504,676.50, 696,405.16 and 278,307.42

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Solution

The fourth proportional to 504,676.50, 696,405.16 and 278,307.42 is: 384,037.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,676.50 : 696,405.16 = 278,307.42 : x
  2. Step 2: Convert to fraction form
    504,676.50/696,405.16 = 278,307.42/x
  3. Step 3: Cross multiply
    504,676.50x = 696,405.16 × 278,307.42
  4. Step 4: Simplify right side
    504,676.50x = 193,814,723,354.29
  5. Step 5: Solve for x
    x = 193,814,723,354.29/504,676.50
  6. Step 6: Final answer
    x = 384,037.54

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1.5x scale

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.