Home / 1,191,142.36-1,643,111.10-731,937.88

Finding the Fourth Proportional to 1,191,142.36, 1,643,111.10 and 731,937.88

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Solution

The fourth proportional to 1,191,142.36, 1,643,111.10 and 731,937.88 is: 1,009,665.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,142.36 : 1,643,111.10 = 731,937.88 : x
  2. Step 2: Convert to fraction form
    1,191,142.36/1,643,111.10 = 731,937.88/x
  3. Step 3: Cross multiply
    1,191,142.36x = 1,643,111.10 × 731,937.88
  4. Step 4: Simplify right side
    1,191,142.36x = 1,202,655,255,138.47
  5. Step 5: Solve for x
    x = 1,202,655,255,138.47/1,191,142.36
  6. Step 6: Final answer
    x = 1,009,665.42

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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.