Home / 1,190,679.90-1,643,149.63-646,819.77

Finding the Fourth Proportional to 1,190,679.90, 1,643,149.63 and 646,819.77

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Solution

The fourth proportional to 1,190,679.90, 1,643,149.63 and 646,819.77 is: 892,617.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,679.90 : 1,643,149.63 = 646,819.77 : x
  2. Step 2: Convert to fraction form
    1,190,679.90/1,643,149.63 = 646,819.77/x
  3. Step 3: Cross multiply
    1,190,679.90x = 1,643,149.63 × 646,819.77
  4. Step 4: Simplify right side
    1,190,679.90x = 1,062,821,665,752.19
  5. Step 5: Solve for x
    x = 1,062,821,665,752.19/1,190,679.90
  6. Step 6: Final answer
    x = 892,617.46

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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.