Home / 1,319,372.24-1,820,905.41-738,816.45

Finding the Fourth Proportional to 1,319,372.24, 1,820,905.41 and 738,816.45

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Solution

The fourth proportional to 1,319,372.24, 1,820,905.41 and 738,816.45 is: 1,019,662.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,372.24 : 1,820,905.41 = 738,816.45 : x
  2. Step 2: Convert to fraction form
    1,319,372.24/1,820,905.41 = 738,816.45/x
  3. Step 3: Cross multiply
    1,319,372.24x = 1,820,905.41 × 738,816.45
  4. Step 4: Simplify right side
    1,319,372.24x = 1,345,314,870,801.99
  5. Step 5: Solve for x
    x = 1,345,314,870,801.99/1,319,372.24
  6. Step 6: Final answer
    x = 1,019,662.86

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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.