Home / 1,115,119.72-1,538,526.18-631,608.04

Finding the Fourth Proportional to 1,115,119.72, 1,538,526.18 and 631,608.04

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Solution

The fourth proportional to 1,115,119.72, 1,538,526.18 and 631,608.04 is: 871,427.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,119.72 : 1,538,526.18 = 631,608.04 : x
  2. Step 2: Convert to fraction form
    1,115,119.72/1,538,526.18 = 631,608.04/x
  3. Step 3: Cross multiply
    1,115,119.72x = 1,538,526.18 × 631,608.04
  4. Step 4: Simplify right side
    1,115,119.72x = 971,745,505,038.49
  5. Step 5: Solve for x
    x = 971,745,505,038.49/1,115,119.72
  6. Step 6: Final answer
    x = 871,427.07

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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.