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Finding the Fourth Proportional to 682,737.72, 1,024,238.70 and 261,980.88

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Solution

The fourth proportional to 682,737.72, 1,024,238.70 and 261,980.88 is: 393,022.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,737.72 : 1,024,238.70 = 261,980.88 : x
  2. Step 2: Convert to fraction form
    682,737.72/1,024,238.70 = 261,980.88/x
  3. Step 3: Cross multiply
    682,737.72x = 1,024,238.70 × 261,980.88
  4. Step 4: Simplify right side
    682,737.72x = 268,330,955,956.06
  5. Step 5: Solve for x
    x = 268,330,955,956.06/682,737.72
  6. Step 6: Final answer
    x = 393,022.02

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1.5x scale

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.