Home / 789,157.43-1,089,036.74-426,581.28

Finding the Fourth Proportional to 789,157.43, 1,089,036.74 and 426,581.28

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Solution

The fourth proportional to 789,157.43, 1,089,036.74 and 426,581.28 is: 588,681.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,157.43 : 1,089,036.74 = 426,581.28 : x
  2. Step 2: Convert to fraction form
    789,157.43/1,089,036.74 = 426,581.28/x
  3. Step 3: Cross multiply
    789,157.43x = 1,089,036.74 × 426,581.28
  4. Step 4: Simplify right side
    789,157.43x = 464,562,687,225.11
  5. Step 5: Solve for x
    x = 464,562,687,225.11/789,157.43
  6. Step 6: Final answer
    x = 588,681.89

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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.