Home / 685,713.80-1,028,372.04-205,922.24

Finding the Fourth Proportional to 685,713.80, 1,028,372.04 and 205,922.24

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Solution

The fourth proportional to 685,713.80, 1,028,372.04 and 205,922.24 is: 308,823.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,713.80 : 1,028,372.04 = 205,922.24 : x
  2. Step 2: Convert to fraction form
    685,713.80/1,028,372.04 = 205,922.24/x
  3. Step 3: Cross multiply
    685,713.80x = 1,028,372.04 × 205,922.24
  4. Step 4: Simplify right side
    685,713.80x = 211,764,674,030.17
  5. Step 5: Solve for x
    x = 211,764,674,030.17/685,713.80
  6. Step 6: Final answer
    x = 308,823.70

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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.