Home / 1,089,264.21-1,503,079.44-630,287.43

Finding the Fourth Proportional to 1,089,264.21, 1,503,079.44 and 630,287.43

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Solution

The fourth proportional to 1,089,264.21, 1,503,079.44 and 630,287.43 is: 869,735.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,264.21 : 1,503,079.44 = 630,287.43 : x
  2. Step 2: Convert to fraction form
    1,089,264.21/1,503,079.44 = 630,287.43/x
  3. Step 3: Cross multiply
    1,089,264.21x = 1,503,079.44 × 630,287.43
  4. Step 4: Simplify right side
    1,089,264.21x = 947,372,069,323.31
  5. Step 5: Solve for x
    x = 947,372,069,323.31/1,089,264.21
  6. Step 6: Final answer
    x = 869,735.79

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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.