Home / 1,761,869.60-2,642,804.40-1,230,428.60

Finding the Fourth Proportional to 1,761,869.60, 2,642,804.40 and 1,230,428.60

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Solution

The fourth proportional to 1,761,869.60, 2,642,804.40 and 1,230,428.60 is: 1,845,642.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,869.60 : 2,642,804.40 = 1,230,428.60 : x
  2. Step 2: Convert to fraction form
    1,761,869.60/2,642,804.40 = 1,230,428.60/x
  3. Step 3: Cross multiply
    1,761,869.60x = 2,642,804.40 × 1,230,428.60
  4. Step 4: Simplify right side
    1,761,869.60x = 3,251,782,117,965.84
  5. Step 5: Solve for x
    x = 3,251,782,117,965.84/1,761,869.60
  6. Step 6: Final answer
    x = 1,845,642.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.