Home / 1,393,007.90-2,089,165.79-786,062.66

Finding the Fourth Proportional to 1,393,007.90, 2,089,165.79 and 786,062.66

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Solution

The fourth proportional to 1,393,007.90, 2,089,165.79 and 786,062.66 is: 1,178,898.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,007.90 : 2,089,165.79 = 786,062.66 : x
  2. Step 2: Convert to fraction form
    1,393,007.90/2,089,165.79 = 786,062.66/x
  3. Step 3: Cross multiply
    1,393,007.90x = 2,089,165.79 × 786,062.66
  4. Step 4: Simplify right side
    1,393,007.90x = 1,642,215,209,587.73
  5. Step 5: Solve for x
    x = 1,642,215,209,587.73/1,393,007.90
  6. Step 6: Final answer
    x = 1,178,898.71

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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.