Home / 1,113,638.08-1,669,912.80-776,840.16

Finding the Fourth Proportional to 1,113,638.08, 1,669,912.80 and 776,840.16

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Solution

The fourth proportional to 1,113,638.08, 1,669,912.80 and 776,840.16 is: 1,164,880.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,638.08 : 1,669,912.80 = 776,840.16 : x
  2. Step 2: Convert to fraction form
    1,113,638.08/1,669,912.80 = 776,840.16/x
  3. Step 3: Cross multiply
    1,113,638.08x = 1,669,912.80 × 776,840.16
  4. Step 4: Simplify right side
    1,113,638.08x = 1,297,255,326,738.05
  5. Step 5: Solve for x
    x = 1,297,255,326,738.05/1,113,638.08
  6. Step 6: Final answer
    x = 1,164,880.54

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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.