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Finding the Fourth Proportional to 504,870.06, 696,709.46 and 278,515.50

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Solution

The fourth proportional to 504,870.06, 696,709.46 and 278,515.50 is: 384,345.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,870.06 : 696,709.46 = 278,515.50 : x
  2. Step 2: Convert to fraction form
    504,870.06/696,709.46 = 278,515.50/x
  3. Step 3: Cross multiply
    504,870.06x = 696,709.46 × 278,515.50
  4. Step 4: Simplify right side
    504,870.06x = 194,044,383,606.63
  5. Step 5: Solve for x
    x = 194,044,383,606.63/504,870.06
  6. Step 6: Final answer
    x = 384,345.20

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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.