Home / 1,490,644.89-2,058,368.73-1,442,441.54

Finding the Fourth Proportional to 1,490,644.89, 2,058,368.73 and 1,442,441.54

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Solution

The fourth proportional to 1,490,644.89, 2,058,368.73 and 1,442,441.54 is: 1,991,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,644.89 : 2,058,368.73 = 1,442,441.54 : x
  2. Step 2: Convert to fraction form
    1,490,644.89/2,058,368.73 = 1,442,441.54/x
  3. Step 3: Cross multiply
    1,490,644.89x = 2,058,368.73 × 1,442,441.54
  4. Step 4: Simplify right side
    1,490,644.89x = 2,969,076,550,497.20
  5. Step 5: Solve for x
    x = 2,969,076,550,497.20/1,490,644.89
  6. Step 6: Final answer
    x = 1,991,806.75

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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.