Home / 1,138,553.64-1,571,208.74-622,317.80

Finding the Fourth Proportional to 1,138,553.64, 1,571,208.74 and 622,317.80

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Solution

The fourth proportional to 1,138,553.64, 1,571,208.74 and 622,317.80 is: 858,801.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,553.64 : 1,571,208.74 = 622,317.80 : x
  2. Step 2: Convert to fraction form
    1,138,553.64/1,571,208.74 = 622,317.80/x
  3. Step 3: Cross multiply
    1,138,553.64x = 1,571,208.74 × 622,317.80
  4. Step 4: Simplify right side
    1,138,553.64x = 977,791,166,417.57
  5. Step 5: Solve for x
    x = 977,791,166,417.57/1,138,553.64
  6. Step 6: Final answer
    x = 858,801.14

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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.