Home / 789,407.64-1,089,381.87-426,831.26

Finding the Fourth Proportional to 789,407.64, 1,089,381.87 and 426,831.26

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Solution

The fourth proportional to 789,407.64, 1,089,381.87 and 426,831.26 is: 589,026.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,407.64 : 1,089,381.87 = 426,831.26 : x
  2. Step 2: Convert to fraction form
    789,407.64/1,089,381.87 = 426,831.26/x
  3. Step 3: Cross multiply
    789,407.64x = 1,089,381.87 × 426,831.26
  4. Step 4: Simplify right side
    789,407.64x = 464,982,230,746.35
  5. Step 5: Solve for x
    x = 464,982,230,746.35/789,407.64
  6. Step 6: Final answer
    x = 589,026.77

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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.