Home / 1,155,421.26-1,594,451.52-639,161.69

Finding the Fourth Proportional to 1,155,421.26, 1,594,451.52 and 639,161.69

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Solution

The fourth proportional to 1,155,421.26, 1,594,451.52 and 639,161.69 is: 882,026.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,421.26 : 1,594,451.52 = 639,161.69 : x
  2. Step 2: Convert to fraction form
    1,155,421.26/1,594,451.52 = 639,161.69/x
  3. Step 3: Cross multiply
    1,155,421.26x = 1,594,451.52 × 639,161.69
  4. Step 4: Simplify right side
    1,155,421.26x = 1,019,112,320,174.01
  5. Step 5: Solve for x
    x = 1,019,112,320,174.01/1,155,421.26
  6. Step 6: Final answer
    x = 882,026.63

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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.