Home / 1,578,863.40-2,364,795.90-1,222,722.60

Finding the Fourth Proportional to 1,578,863.40, 2,364,795.90 and 1,222,722.60

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Solution

The fourth proportional to 1,578,863.40, 2,364,795.90 and 1,222,722.60 is: 1,831,374.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,863.40 : 2,364,795.90 = 1,222,722.60 : x
  2. Step 2: Convert to fraction form
    1,578,863.40/2,364,795.90 = 1,222,722.60/x
  3. Step 3: Cross multiply
    1,578,863.40x = 2,364,795.90 × 1,222,722.60
  4. Step 4: Simplify right side
    1,578,863.40x = 2,891,489,391,317.34
  5. Step 5: Solve for x
    x = 2,891,489,391,317.34/1,578,863.40
  6. Step 6: Final answer
    x = 1,831,374.01

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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.