Home / 1,205,346.20-1,808,019.30-306,786.20

Finding the Fourth Proportional to 1,205,346.20, 1,808,019.30 and 306,786.20

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Solution

The fourth proportional to 1,205,346.20, 1,808,019.30 and 306,786.20 is: 460,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,346.20 : 1,808,019.30 = 306,786.20 : x
  2. Step 2: Convert to fraction form
    1,205,346.20/1,808,019.30 = 306,786.20/x
  3. Step 3: Cross multiply
    1,205,346.20x = 1,808,019.30 × 306,786.20
  4. Step 4: Simplify right side
    1,205,346.20x = 554,675,370,573.66
  5. Step 5: Solve for x
    x = 554,675,370,573.66/1,205,346.20
  6. Step 6: Final answer
    x = 460,179.30

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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.