Home / 1,115,088.19-1,538,853.27-631,653.22

Finding the Fourth Proportional to 1,115,088.19, 1,538,853.27 and 631,653.22

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Solution

The fourth proportional to 1,115,088.19, 1,538,853.27 and 631,653.22 is: 871,699.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,088.19 : 1,538,853.27 = 631,653.22 : x
  2. Step 2: Convert to fraction form
    1,115,088.19/1,538,853.27 = 631,653.22/x
  3. Step 3: Cross multiply
    1,115,088.19x = 1,538,853.27 × 631,653.22
  4. Step 4: Simplify right side
    1,115,088.19x = 972,021,623,103.03
  5. Step 5: Solve for x
    x = 972,021,623,103.03/1,115,088.19
  6. Step 6: Final answer
    x = 871,699.33

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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.