Home / 1,138,663.90-1,571,389.60-622,446.32

Finding the Fourth Proportional to 1,138,663.90, 1,571,389.60 and 622,446.32

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Solution

The fourth proportional to 1,138,663.90, 1,571,389.60 and 622,446.32 is: 858,994.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,663.90 : 1,571,389.60 = 622,446.32 : x
  2. Step 2: Convert to fraction form
    1,138,663.90/1,571,389.60 = 622,446.32/x
  3. Step 3: Cross multiply
    1,138,663.90x = 1,571,389.60 × 622,446.32
  4. Step 4: Simplify right side
    1,138,663.90x = 978,105,673,806.27
  5. Step 5: Solve for x
    x = 978,105,673,806.27/1,138,663.90
  6. Step 6: Final answer
    x = 858,994.19

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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.