Home / 1,139,058.44-1,571,881.38-812,971.88

Finding the Fourth Proportional to 1,139,058.44, 1,571,881.38 and 812,971.88

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Solution

The fourth proportional to 1,139,058.44, 1,571,881.38 and 812,971.88 is: 1,121,887.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,058.44 : 1,571,881.38 = 812,971.88 : x
  2. Step 2: Convert to fraction form
    1,139,058.44/1,571,881.38 = 812,971.88/x
  3. Step 3: Cross multiply
    1,139,058.44x = 1,571,881.38 × 812,971.88
  4. Step 4: Simplify right side
    1,139,058.44x = 1,277,895,360,635.59
  5. Step 5: Solve for x
    x = 1,277,895,360,635.59/1,139,058.44
  6. Step 6: Final answer
    x = 1,121,887.44

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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.