Home / 1,187,291.72-1,638,494.16-677,983.16

Finding the Fourth Proportional to 1,187,291.72, 1,638,494.16 and 677,983.16

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Solution

The fourth proportional to 1,187,291.72, 1,638,494.16 and 677,983.16 is: 935,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,291.72 : 1,638,494.16 = 677,983.16 : x
  2. Step 2: Convert to fraction form
    1,187,291.72/1,638,494.16 = 677,983.16/x
  3. Step 3: Cross multiply
    1,187,291.72x = 1,638,494.16 × 677,983.16
  4. Step 4: Simplify right side
    1,187,291.72x = 1,110,871,448,238.35
  5. Step 5: Solve for x
    x = 1,110,871,448,238.35/1,187,291.72
  6. Step 6: Final answer
    x = 935,634.80

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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.