Home / 1,455,518.82-2,008,629.70-802,168.40

Finding the Fourth Proportional to 1,455,518.82, 2,008,629.70 and 802,168.40

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Solution

The fourth proportional to 1,455,518.82, 2,008,629.70 and 802,168.40 is: 1,106,999.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,518.82 : 2,008,629.70 = 802,168.40 : x
  2. Step 2: Convert to fraction form
    1,455,518.82/2,008,629.70 = 802,168.40/x
  3. Step 3: Cross multiply
    1,455,518.82x = 2,008,629.70 × 802,168.40
  4. Step 4: Simplify right side
    1,455,518.82x = 1,611,259,258,587.49
  5. Step 5: Solve for x
    x = 1,611,259,258,587.49/1,455,518.82
  6. Step 6: Final answer
    x = 1,106,999.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.