Home / 669,416.28-1,004,124.36-170,780.28

Finding the Fourth Proportional to 669,416.28, 1,004,124.36 and 170,780.28

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Solution

The fourth proportional to 669,416.28, 1,004,124.36 and 170,780.28 is: 256,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,416.28 : 1,004,124.36 = 170,780.28 : x
  2. Step 2: Convert to fraction form
    669,416.28/1,004,124.36 = 170,780.28/x
  3. Step 3: Cross multiply
    669,416.28x = 1,004,124.36 × 170,780.28
  4. Step 4: Simplify right side
    669,416.28x = 171,484,639,355.62
  5. Step 5: Solve for x
    x = 171,484,639,355.62/669,416.28
  6. Step 6: Final answer
    x = 256,170.40

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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.