Home / 979,878.60-1,469,817.22-306,017.66

Finding the Fourth Proportional to 979,878.60, 1,469,817.22 and 306,017.66

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Solution

The fourth proportional to 979,878.60, 1,469,817.22 and 306,017.66 is: 459,026.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,878.60 : 1,469,817.22 = 306,017.66 : x
  2. Step 2: Convert to fraction form
    979,878.60/1,469,817.22 = 306,017.66/x
  3. Step 3: Cross multiply
    979,878.60x = 1,469,817.22 × 306,017.66
  4. Step 4: Simplify right side
    979,878.60x = 449,790,026,292.11
  5. Step 5: Solve for x
    x = 449,790,026,292.11/979,878.60
  6. Step 6: Final answer
    x = 459,026.28

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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.