Home / 1,211,985.74-1,675,563.63-909,654.86

Finding the Fourth Proportional to 1,211,985.74, 1,675,563.63 and 909,654.86

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Solution

The fourth proportional to 1,211,985.74, 1,675,563.63 and 909,654.86 is: 1,257,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,985.74 : 1,675,563.63 = 909,654.86 : x
  2. Step 2: Convert to fraction form
    1,211,985.74/1,675,563.63 = 909,654.86/x
  3. Step 3: Cross multiply
    1,211,985.74x = 1,675,563.63 × 909,654.86
  4. Step 4: Simplify right side
    1,211,985.74x = 1,524,184,599,268.74
  5. Step 5: Solve for x
    x = 1,524,184,599,268.74/1,211,985.74
  6. Step 6: Final answer
    x = 1,257,592.85

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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.