Home / 709,559.80-1,065,117.30-443,620.60

Finding the Fourth Proportional to 709,559.80, 1,065,117.30 and 443,620.60

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Solution

The fourth proportional to 709,559.80, 1,065,117.30 and 443,620.60 is: 665,917.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,559.80 : 1,065,117.30 = 443,620.60 : x
  2. Step 2: Convert to fraction form
    709,559.80/1,065,117.30 = 443,620.60/x
  3. Step 3: Cross multiply
    709,559.80x = 1,065,117.30 × 443,620.60
  4. Step 4: Simplify right side
    709,559.80x = 472,507,975,696.38
  5. Step 5: Solve for x
    x = 472,507,975,696.38/709,559.80
  6. Step 6: Final answer
    x = 665,917.06

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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.