Home / 1,181,139.82-1,772,491.40-649,031.38

Finding the Fourth Proportional to 1,181,139.82, 1,772,491.40 and 649,031.38

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Solution

The fourth proportional to 1,181,139.82, 1,772,491.40 and 649,031.38 is: 973,976.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,139.82 : 1,772,491.40 = 649,031.38 : x
  2. Step 2: Convert to fraction form
    1,181,139.82/1,772,491.40 = 649,031.38/x
  3. Step 3: Cross multiply
    1,181,139.82x = 1,772,491.40 × 649,031.38
  4. Step 4: Simplify right side
    1,181,139.82x = 1,150,402,539,380.13
  5. Step 5: Solve for x
    x = 1,150,402,539,380.13/1,181,139.82
  6. Step 6: Final answer
    x = 973,976.59

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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.