Home / 647,895.20-971,842.80-227,213.60

Finding the Fourth Proportional to 647,895.20, 971,842.80 and 227,213.60

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Solution

The fourth proportional to 647,895.20, 971,842.80 and 227,213.60 is: 340,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,895.20 : 971,842.80 = 227,213.60 : x
  2. Step 2: Convert to fraction form
    647,895.20/971,842.80 = 227,213.60/x
  3. Step 3: Cross multiply
    647,895.20x = 971,842.80 × 227,213.60
  4. Step 4: Simplify right side
    647,895.20x = 220,815,901,222.08
  5. Step 5: Solve for x
    x = 220,815,901,222.08/647,895.20
  6. Step 6: Final answer
    x = 340,820.40

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Similar ratio
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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.