Home / 1,319,683.80-1,820,740.39-738,821.55

Finding the Fourth Proportional to 1,319,683.80, 1,820,740.39 and 738,821.55

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Solution

The fourth proportional to 1,319,683.80, 1,820,740.39 and 738,821.55 is: 1,019,336.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,683.80 : 1,820,740.39 = 738,821.55 : x
  2. Step 2: Convert to fraction form
    1,319,683.80/1,820,740.39 = 738,821.55/x
  3. Step 3: Cross multiply
    1,319,683.80x = 1,820,740.39 × 738,821.55
  4. Step 4: Simplify right side
    1,319,683.80x = 1,345,202,237,087.40
  5. Step 5: Solve for x
    x = 1,345,202,237,087.40/1,319,683.80
  6. Step 6: Final answer
    x = 1,019,336.78

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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.