Home / 1,115,088.19-1,538,853.26-631,653.21

Finding the Fourth Proportional to 1,115,088.19, 1,538,853.26 and 631,653.21

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Solution

The fourth proportional to 1,115,088.19, 1,538,853.26 and 631,653.21 is: 871,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,088.19 : 1,538,853.26 = 631,653.21 : x
  2. Step 2: Convert to fraction form
    1,115,088.19/1,538,853.26 = 631,653.21/x
  3. Step 3: Cross multiply
    1,115,088.19x = 1,538,853.26 × 631,653.21
  4. Step 4: Simplify right side
    1,115,088.19x = 972,021,590,545.43
  5. Step 5: Solve for x
    x = 972,021,590,545.43/1,115,088.19
  6. Step 6: Final answer
    x = 871,699.30

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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.