Home / 1,190,288.25-1,642,597.37-646,424.18

Finding the Fourth Proportional to 1,190,288.25, 1,642,597.37 and 646,424.18

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Solution

The fourth proportional to 1,190,288.25, 1,642,597.37 and 646,424.18 is: 892,065.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,288.25 : 1,642,597.37 = 646,424.18 : x
  2. Step 2: Convert to fraction form
    1,190,288.25/1,642,597.37 = 646,424.18/x
  3. Step 3: Cross multiply
    1,190,288.25x = 1,642,597.37 × 646,424.18
  4. Step 4: Simplify right side
    1,190,288.25x = 1,061,814,657,972.41
  5. Step 5: Solve for x
    x = 1,061,814,657,972.41/1,190,288.25
  6. Step 6: Final answer
    x = 892,065.14

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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.