Home / 669,947.40-1,004,921.10-171,311.40

Finding the Fourth Proportional to 669,947.40, 1,004,921.10 and 171,311.40

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Solution

The fourth proportional to 669,947.40, 1,004,921.10 and 171,311.40 is: 256,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,947.40 : 1,004,921.10 = 171,311.40 : x
  2. Step 2: Convert to fraction form
    669,947.40/1,004,921.10 = 171,311.40/x
  3. Step 3: Cross multiply
    669,947.40x = 1,004,921.10 × 171,311.40
  4. Step 4: Simplify right side
    669,947.40x = 172,154,440,530.54
  5. Step 5: Solve for x
    x = 172,154,440,530.54/669,947.40
  6. Step 6: Final answer
    x = 256,967.10

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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.