Home / 1,138,663.86-1,571,328.75-622,394.58

Finding the Fourth Proportional to 1,138,663.86, 1,571,328.75 and 622,394.58

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Solution

The fourth proportional to 1,138,663.86, 1,571,328.75 and 622,394.58 is: 858,889.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,663.86 : 1,571,328.75 = 622,394.58 : x
  2. Step 2: Convert to fraction form
    1,138,663.86/1,571,328.75 = 622,394.58/x
  3. Step 3: Cross multiply
    1,138,663.86x = 1,571,328.75 × 622,394.58
  4. Step 4: Simplify right side
    1,138,663.86x = 977,986,497,398.18
  5. Step 5: Solve for x
    x = 977,986,497,398.18/1,138,663.86
  6. Step 6: Final answer
    x = 858,889.56

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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.