Home / 669,705.40-1,004,687.70-196,406.20

Finding the Fourth Proportional to 669,705.40, 1,004,687.70 and 196,406.20

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Solution

The fourth proportional to 669,705.40, 1,004,687.70 and 196,406.20 is: 294,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,705.40 : 1,004,687.70 = 196,406.20 : x
  2. Step 2: Convert to fraction form
    669,705.40/1,004,687.70 = 196,406.20/x
  3. Step 3: Cross multiply
    669,705.40x = 1,004,687.70 × 196,406.20
  4. Step 4: Simplify right side
    669,705.40x = 197,326,893,343.74
  5. Step 5: Solve for x
    x = 197,326,893,343.74/669,705.40
  6. Step 6: Final answer
    x = 294,647.31

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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.