Home / 743,915.88-1,115,706.15-211,425.12

Finding the Fourth Proportional to 743,915.88, 1,115,706.15 and 211,425.12

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Solution

The fourth proportional to 743,915.88, 1,115,706.15 and 211,425.12 is: 317,090.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,915.88 : 1,115,706.15 = 211,425.12 : x
  2. Step 2: Convert to fraction form
    743,915.88/1,115,706.15 = 211,425.12/x
  3. Step 3: Cross multiply
    743,915.88x = 1,115,706.15 × 211,425.12
  4. Step 4: Simplify right side
    743,915.88x = 235,888,306,648.49
  5. Step 5: Solve for x
    x = 235,888,306,648.49/743,915.88
  6. Step 6: Final answer
    x = 317,090.03

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Double scale
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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.