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Finding the Fourth Proportional to 504,367.92, 696,027.60 and 278,017.20

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Solution

The fourth proportional to 504,367.92, 696,027.60 and 278,017.20 is: 383,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,367.92 : 696,027.60 = 278,017.20 : x
  2. Step 2: Convert to fraction form
    504,367.92/696,027.60 = 278,017.20/x
  3. Step 3: Cross multiply
    504,367.92x = 696,027.60 × 278,017.20
  4. Step 4: Simplify right side
    504,367.92x = 193,507,644,474.72
  5. Step 5: Solve for x
    x = 193,507,644,474.72/504,367.92
  6. Step 6: Final answer
    x = 383,663.66

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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.