Home / 824,751.81-1,237,321.40-256,103.55

Finding the Fourth Proportional to 824,751.81, 1,237,321.40 and 256,103.55

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Solution

The fourth proportional to 824,751.81, 1,237,321.40 and 256,103.55 is: 384,215.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,751.81 : 1,237,321.40 = 256,103.55 : x
  2. Step 2: Convert to fraction form
    824,751.81/1,237,321.40 = 256,103.55/x
  3. Step 3: Cross multiply
    824,751.81x = 1,237,321.40 × 256,103.55
  4. Step 4: Simplify right side
    824,751.81x = 316,882,401,750.45
  5. Step 5: Solve for x
    x = 316,882,401,750.45/824,751.81
  6. Step 6: Final answer
    x = 384,215.47

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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.