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Finding the Fourth Proportional to 797,690, 1,197,323.20 and 348,720.72

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Solution

The fourth proportional to 797,690, 1,197,323.20 and 348,720.72 is: 523,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    797,690 : 1,197,323.20 = 348,720.72 : x
  2. Step 2: Convert to fraction form
    797,690/1,197,323.20 = 348,720.72/x
  3. Step 3: Cross multiply
    797,690x = 1,197,323.20 × 348,720.72
  4. Step 4: Simplify right side
    797,690x = 417,531,408,376.70
  5. Step 5: Solve for x
    x = 417,531,408,376.70/797,690
  6. Step 6: Final answer
    x = 523,425.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.