Home / 1,129,116.48-1,691,460.28-654,805.36

Finding the Fourth Proportional to 1,129,116.48, 1,691,460.28 and 654,805.36

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Solution

The fourth proportional to 1,129,116.48, 1,691,460.28 and 654,805.36 is: 980,923.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,116.48 : 1,691,460.28 = 654,805.36 : x
  2. Step 2: Convert to fraction form
    1,129,116.48/1,691,460.28 = 654,805.36/x
  3. Step 3: Cross multiply
    1,129,116.48x = 1,691,460.28 × 654,805.36
  4. Step 4: Simplify right side
    1,129,116.48x = 1,107,577,257,571.10
  5. Step 5: Solve for x
    x = 1,107,577,257,571.10/1,129,116.48
  6. Step 6: Final answer
    x = 980,923.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.