Home / 1,245,852.36-1,861,950.77-909,601.11

Finding the Fourth Proportional to 1,245,852.36, 1,861,950.77 and 909,601.11

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Solution

The fourth proportional to 1,245,852.36, 1,861,950.77 and 909,601.11 is: 1,359,416.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,852.36 : 1,861,950.77 = 909,601.11 : x
  2. Step 2: Convert to fraction form
    1,245,852.36/1,861,950.77 = 909,601.11/x
  3. Step 3: Cross multiply
    1,245,852.36x = 1,861,950.77 × 909,601.11
  4. Step 4: Simplify right side
    1,245,852.36x = 1,693,632,487,157.35
  5. Step 5: Solve for x
    x = 1,693,632,487,157.35/1,245,852.36
  6. Step 6: Final answer
    x = 1,359,416.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.