Home / 1,211,487.03-1,817,089.86-312,858.12

Finding the Fourth Proportional to 1,211,487.03, 1,817,089.86 and 312,858.12

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Solution

The fourth proportional to 1,211,487.03, 1,817,089.86 and 312,858.12 is: 469,250.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,487.03 : 1,817,089.86 = 312,858.12 : x
  2. Step 2: Convert to fraction form
    1,211,487.03/1,817,089.86 = 312,858.12/x
  3. Step 3: Cross multiply
    1,211,487.03x = 1,817,089.86 × 312,858.12
  4. Step 4: Simplify right side
    1,211,487.03x = 568,491,317,470.66
  5. Step 5: Solve for x
    x = 568,491,317,470.66/1,211,487.03
  6. Step 6: Final answer
    x = 469,250.85

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1.5x scale

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.