Home / 817,100.59-1,225,847.72-256,135.09

Finding the Fourth Proportional to 817,100.59, 1,225,847.72 and 256,135.09

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Solution

The fourth proportional to 817,100.59, 1,225,847.72 and 256,135.09 is: 384,264.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,100.59 : 1,225,847.72 = 256,135.09 : x
  2. Step 2: Convert to fraction form
    817,100.59/1,225,847.72 = 256,135.09/x
  3. Step 3: Cross multiply
    817,100.59x = 1,225,847.72 × 256,135.09
  4. Step 4: Simplify right side
    817,100.59x = 313,982,616,088.50
  5. Step 5: Solve for x
    x = 313,982,616,088.50/817,100.59
  6. Step 6: Final answer
    x = 384,264.34

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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.