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Finding the Fourth Proportional to 504,430.66, 696,104.03 and 278,076.16

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Solution

The fourth proportional to 504,430.66, 696,104.03 and 278,076.16 is: 383,739.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,430.66 : 696,104.03 = 278,076.16 : x
  2. Step 2: Convert to fraction form
    504,430.66/696,104.03 = 278,076.16/x
  3. Step 3: Cross multiply
    504,430.66x = 696,104.03 × 278,076.16
  4. Step 4: Simplify right side
    504,430.66x = 193,569,930,752.02
  5. Step 5: Solve for x
    x = 193,569,930,752.02/504,430.66
  6. Step 6: Final answer
    x = 383,739.43

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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.