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Finding the Fourth Proportional to 504,699.70, 696,466.34 and 278,345.20

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Solution

The fourth proportional to 504,699.70, 696,466.34 and 278,345.20 is: 384,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,699.70 : 696,466.34 = 278,345.20 : x
  2. Step 2: Convert to fraction form
    504,699.70/696,466.34 = 278,345.20/x
  3. Step 3: Cross multiply
    504,699.70x = 696,466.34 × 278,345.20
  4. Step 4: Simplify right side
    504,699.70x = 193,858,062,700.57
  5. Step 5: Solve for x
    x = 193,858,062,700.57/504,699.70
  6. Step 6: Final answer
    x = 384,105.76

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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.