Home / 879,766.31-1,326,242.09-821,176.31

Finding the Fourth Proportional to 879,766.31, 1,326,242.09 and 821,176.31

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Solution

The fourth proportional to 879,766.31, 1,326,242.09 and 821,176.31 is: 1,237,918.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,766.31 : 1,326,242.09 = 821,176.31 : x
  2. Step 2: Convert to fraction form
    879,766.31/1,326,242.09 = 821,176.31/x
  3. Step 3: Cross multiply
    879,766.31x = 1,326,242.09 × 821,176.31
  4. Step 4: Simplify right side
    879,766.31x = 1,089,078,585,632.89
  5. Step 5: Solve for x
    x = 1,089,078,585,632.89/879,766.31
  6. Step 6: Final answer
    x = 1,237,918.04

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.