Home / 817,086.17-1,225,826.13-256,120.67

Finding the Fourth Proportional to 817,086.17, 1,225,826.13 and 256,120.67

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Solution

The fourth proportional to 817,086.17, 1,225,826.13 and 256,120.67 is: 384,242.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,086.17 : 1,225,826.13 = 256,120.67 : x
  2. Step 2: Convert to fraction form
    817,086.17/1,225,826.13 = 256,120.67/x
  3. Step 3: Cross multiply
    817,086.17x = 1,225,826.13 × 256,120.67
  4. Step 4: Simplify right side
    817,086.17x = 313,959,409,719.11
  5. Step 5: Solve for x
    x = 313,959,409,719.11/817,086.17
  6. Step 6: Final answer
    x = 384,242.72

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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.