Home / 1,190,130.66-1,642,374.39-646,261.63

Finding the Fourth Proportional to 1,190,130.66, 1,642,374.39 and 646,261.63

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Solution

The fourth proportional to 1,190,130.66, 1,642,374.39 and 646,261.63 is: 891,837.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,130.66 : 1,642,374.39 = 646,261.63 : x
  2. Step 2: Convert to fraction form
    1,190,130.66/1,642,374.39 = 646,261.63/x
  3. Step 3: Cross multiply
    1,190,130.66x = 1,642,374.39 × 646,261.63
  4. Step 4: Simplify right side
    1,190,130.66x = 1,061,403,548,669.20
  5. Step 5: Solve for x
    x = 1,061,403,548,669.20/1,190,130.66
  6. Step 6: Final answer
    x = 891,837.83

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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.