Home / 839,928.75-1,260,071.72-271,342.46

Finding the Fourth Proportional to 839,928.75, 1,260,071.72 and 271,342.46

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Solution

The fourth proportional to 839,928.75, 1,260,071.72 and 271,342.46 is: 407,071.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,928.75 : 1,260,071.72 = 271,342.46 : x
  2. Step 2: Convert to fraction form
    839,928.75/1,260,071.72 = 271,342.46/x
  3. Step 3: Cross multiply
    839,928.75x = 1,260,071.72 × 271,342.46
  4. Step 4: Simplify right side
    839,928.75x = 341,910,960,281.23
  5. Step 5: Solve for x
    x = 341,910,960,281.23/839,928.75
  6. Step 6: Final answer
    x = 407,071.39

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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.