Home / 681,644.10-1,022,466.15-208,328.70

Finding the Fourth Proportional to 681,644.10, 1,022,466.15 and 208,328.70

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Solution

The fourth proportional to 681,644.10, 1,022,466.15 and 208,328.70 is: 312,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,644.10 : 1,022,466.15 = 208,328.70 : x
  2. Step 2: Convert to fraction form
    681,644.10/1,022,466.15 = 208,328.70/x
  3. Step 3: Cross multiply
    681,644.10x = 1,022,466.15 × 208,328.70
  4. Step 4: Simplify right side
    681,644.10x = 213,009,043,823.51
  5. Step 5: Solve for x
    x = 213,009,043,823.51/681,644.10
  6. Step 6: Final answer
    x = 312,493.05

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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.