Home / 670,383.70-1,005,599.85-197,116.90

Finding the Fourth Proportional to 670,383.70, 1,005,599.85 and 197,116.90

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Solution

The fourth proportional to 670,383.70, 1,005,599.85 and 197,116.90 is: 295,682.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,383.70 : 1,005,599.85 = 197,116.90 : x
  2. Step 2: Convert to fraction form
    670,383.70/1,005,599.85 = 197,116.90/x
  3. Step 3: Cross multiply
    670,383.70x = 1,005,599.85 × 197,116.90
  4. Step 4: Simplify right side
    670,383.70x = 198,220,725,072.47
  5. Step 5: Solve for x
    x = 198,220,725,072.47/670,383.70
  6. Step 6: Final answer
    x = 295,682.50

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Half scale
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Double scale
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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.