Home / 825,362.55-1,238,222.07-256,732.83

Finding the Fourth Proportional to 825,362.55, 1,238,222.07 and 256,732.83

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Solution

The fourth proportional to 825,362.55, 1,238,222.07 and 256,732.83 is: 385,154.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,362.55 : 1,238,222.07 = 256,732.83 : x
  2. Step 2: Convert to fraction form
    825,362.55/1,238,222.07 = 256,732.83/x
  3. Step 3: Cross multiply
    825,362.55x = 1,238,222.07 × 256,732.83
  4. Step 4: Simplify right side
    825,362.55x = 317,892,256,199.56
  5. Step 5: Solve for x
    x = 317,892,256,199.56/825,362.55
  6. Step 6: Final answer
    x = 385,154.69

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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.