Home / 1,211,986.74-1,675,565.01-909,655.86

Finding the Fourth Proportional to 1,211,986.74, 1,675,565.01 and 909,655.86

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Solution

The fourth proportional to 1,211,986.74, 1,675,565.01 and 909,655.86 is: 1,257,594.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,986.74 : 1,675,565.01 = 909,655.86 : x
  2. Step 2: Convert to fraction form
    1,211,986.74/1,675,565.01 = 909,655.86/x
  3. Step 3: Cross multiply
    1,211,986.74x = 1,675,565.01 × 909,655.86
  4. Step 4: Simplify right side
    1,211,986.74x = 1,524,187,530,157.46
  5. Step 5: Solve for x
    x = 1,524,187,530,157.46/1,211,986.74
  6. Step 6: Final answer
    x = 1,257,594.23

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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.