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Finding the Fourth Proportional to 651,816.60, 978,162.30 and 296,647.80

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Solution

The fourth proportional to 651,816.60, 978,162.30 and 296,647.80 is: 445,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,816.60 : 978,162.30 = 296,647.80 : x
  2. Step 2: Convert to fraction form
    651,816.60/978,162.30 = 296,647.80/x
  3. Step 3: Cross multiply
    651,816.60x = 978,162.30 × 296,647.80
  4. Step 4: Simplify right side
    651,816.60x = 290,169,694,337.94
  5. Step 5: Solve for x
    x = 290,169,694,337.94/651,816.60
  6. Step 6: Final answer
    x = 445,170.76

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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.