Home / 1,008,033.60-1,515,160.80-989,371.20

Finding the Fourth Proportional to 1,008,033.60, 1,515,160.80 and 989,371.20

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Solution

The fourth proportional to 1,008,033.60, 1,515,160.80 and 989,371.20 is: 1,487,109.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,033.60 : 1,515,160.80 = 989,371.20 : x
  2. Step 2: Convert to fraction form
    1,008,033.60/1,515,160.80 = 989,371.20/x
  3. Step 3: Cross multiply
    1,008,033.60x = 1,515,160.80 × 989,371.20
  4. Step 4: Simplify right side
    1,008,033.60x = 1,499,056,458,888.96
  5. Step 5: Solve for x
    x = 1,499,056,458,888.96/1,008,033.60
  6. Step 6: Final answer
    x = 1,487,109.62

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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.