Home / 1,189,917.60-1,642,076.70-646,042.62

Finding the Fourth Proportional to 1,189,917.60, 1,642,076.70 and 646,042.62

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Solution

The fourth proportional to 1,189,917.60, 1,642,076.70 and 646,042.62 is: 891,533.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,917.60 : 1,642,076.70 = 646,042.62 : x
  2. Step 2: Convert to fraction form
    1,189,917.60/1,642,076.70 = 646,042.62/x
  3. Step 3: Cross multiply
    1,189,917.60x = 1,642,076.70 × 646,042.62
  4. Step 4: Simplify right side
    1,189,917.60x = 1,060,851,533,508.95
  5. Step 5: Solve for x
    x = 1,060,851,533,508.95/1,189,917.60
  6. Step 6: Final answer
    x = 891,533.61

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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.