Home / 920,078.45-1,380,267.49-271,720.23

Finding the Fourth Proportional to 920,078.45, 1,380,267.49 and 271,720.23

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Solution

The fourth proportional to 920,078.45, 1,380,267.49 and 271,720.23 is: 407,624.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,078.45 : 1,380,267.49 = 271,720.23 : x
  2. Step 2: Convert to fraction form
    920,078.45/1,380,267.49 = 271,720.23/x
  3. Step 3: Cross multiply
    920,078.45x = 1,380,267.49 × 271,720.23
  4. Step 4: Simplify right side
    920,078.45x = 375,046,599,844.32
  5. Step 5: Solve for x
    x = 375,046,599,844.32/920,078.45
  6. Step 6: Final answer
    x = 407,624.59

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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.