Home / 1,245,489.86-1,861,410.58-909,238.58

Finding the Fourth Proportional to 1,245,489.86, 1,861,410.58 and 909,238.58

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Solution

The fourth proportional to 1,245,489.86, 1,861,410.58 and 909,238.58 is: 1,358,876.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,489.86 : 1,861,410.58 = 909,238.58 : x
  2. Step 2: Convert to fraction form
    1,245,489.86/1,861,410.58 = 909,238.58/x
  3. Step 3: Cross multiply
    1,245,489.86x = 1,861,410.58 × 909,238.58
  4. Step 4: Simplify right side
    1,245,489.86x = 1,692,466,312,556.18
  5. Step 5: Solve for x
    x = 1,692,466,312,556.18/1,245,489.86
  6. Step 6: Final answer
    x = 1,358,876.03

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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.