Home / 1,190,178.64-1,642,458.39-646,319.14

Finding the Fourth Proportional to 1,190,178.64, 1,642,458.39 and 646,319.14

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Solution

The fourth proportional to 1,190,178.64, 1,642,458.39 and 646,319.14 is: 891,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,178.64 : 1,642,458.39 = 646,319.14 : x
  2. Step 2: Convert to fraction form
    1,190,178.64/1,642,458.39 = 646,319.14/x
  3. Step 3: Cross multiply
    1,190,178.64x = 1,642,458.39 × 646,319.14
  4. Step 4: Simplify right side
    1,190,178.64x = 1,061,552,294,110.58
  5. Step 5: Solve for x
    x = 1,061,552,294,110.58/1,190,178.64
  6. Step 6: Final answer
    x = 891,926.86

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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.