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Finding the Fourth Proportional to 504,481, 696,188.50 and 278,134.60

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Solution

The fourth proportional to 504,481, 696,188.50 and 278,134.60 is: 383,828.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,481 : 696,188.50 = 278,134.60 : x
  2. Step 2: Convert to fraction form
    504,481/696,188.50 = 278,134.60/x
  3. Step 3: Cross multiply
    504,481x = 696,188.50 × 278,134.60
  4. Step 4: Simplify right side
    504,481x = 193,634,109,972.10
  5. Step 5: Solve for x
    x = 193,634,109,972.10/504,481
  6. Step 6: Final answer
    x = 383,828.35

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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.