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Finding the Fourth Proportional to 612,079.79, 844,603.02 and 353,917.67

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Solution

The fourth proportional to 612,079.79, 844,603.02 and 353,917.67 is: 488,367.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,079.79 : 844,603.02 = 353,917.67 : x
  2. Step 2: Convert to fraction form
    612,079.79/844,603.02 = 353,917.67/x
  3. Step 3: Cross multiply
    612,079.79x = 844,603.02 × 353,917.67
  4. Step 4: Simplify right side
    612,079.79x = 298,919,928,690.35
  5. Step 5: Solve for x
    x = 298,919,928,690.35/612,079.79
  6. Step 6: Final answer
    x = 488,367.59

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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.