Home / 1,190,398.71-1,642,762.08-646,539.60

Finding the Fourth Proportional to 1,190,398.71, 1,642,762.08 and 646,539.60

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Solution

The fourth proportional to 1,190,398.71, 1,642,762.08 and 646,539.60 is: 892,231.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,398.71 : 1,642,762.08 = 646,539.60 : x
  2. Step 2: Convert to fraction form
    1,190,398.71/1,642,762.08 = 646,539.60/x
  3. Step 3: Cross multiply
    1,190,398.71x = 1,642,762.08 × 646,539.60
  4. Step 4: Simplify right side
    1,190,398.71x = 1,062,110,738,098.37
  5. Step 5: Solve for x
    x = 1,062,110,738,098.37/1,190,398.71
  6. Step 6: Final answer
    x = 892,231.09

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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.