Home / 817,087.17-1,225,827.63-256,121.67

Finding the Fourth Proportional to 817,087.17, 1,225,827.63 and 256,121.67

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Solution

The fourth proportional to 817,087.17, 1,225,827.63 and 256,121.67 is: 384,244.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,087.17 : 1,225,827.63 = 256,121.67 : x
  2. Step 2: Convert to fraction form
    817,087.17/1,225,827.63 = 256,121.67/x
  3. Step 3: Cross multiply
    817,087.17x = 1,225,827.63 × 256,121.67
  4. Step 4: Simplify right side
    817,087.17x = 313,961,019,727.74
  5. Step 5: Solve for x
    x = 313,961,019,727.74/817,087.17
  6. Step 6: Final answer
    x = 384,244.22

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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.