Home / 1,235,825.80-1,850,628.30-812,811.40

Finding the Fourth Proportional to 1,235,825.80, 1,850,628.30 and 812,811.40

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Solution

The fourth proportional to 1,235,825.80, 1,850,628.30 and 812,811.40 is: 1,217,171.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,825.80 : 1,850,628.30 = 812,811.40 : x
  2. Step 2: Convert to fraction form
    1,235,825.80/1,850,628.30 = 812,811.40/x
  3. Step 3: Cross multiply
    1,235,825.80x = 1,850,628.30 × 812,811.40
  4. Step 4: Simplify right side
    1,235,825.80x = 1,504,211,779,402.62
  5. Step 5: Solve for x
    x = 1,504,211,779,402.62/1,235,825.80
  6. Step 6: Final answer
    x = 1,217,171.37

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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.