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Finding the Fourth Proportional to 493,311.32, 680,769.60 and 266,956.82

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Solution

The fourth proportional to 493,311.32, 680,769.60 and 266,956.82 is: 368,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,311.32 : 680,769.60 = 266,956.82 : x
  2. Step 2: Convert to fraction form
    493,311.32/680,769.60 = 266,956.82/x
  3. Step 3: Cross multiply
    493,311.32x = 680,769.60 × 266,956.82
  4. Step 4: Simplify right side
    493,311.32x = 181,736,087,568.67
  5. Step 5: Solve for x
    x = 181,736,087,568.67/493,311.32
  6. Step 6: Final answer
    x = 368,400.40

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1.5x scale

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.