Home / 989,134.40-1,483,701.60-867,099.80

Finding the Fourth Proportional to 989,134.40, 1,483,701.60 and 867,099.80

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Solution

The fourth proportional to 989,134.40, 1,483,701.60 and 867,099.80 is: 1,300,649.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,134.40 : 1,483,701.60 = 867,099.80 : x
  2. Step 2: Convert to fraction form
    989,134.40/1,483,701.60 = 867,099.80/x
  3. Step 3: Cross multiply
    989,134.40x = 1,483,701.60 × 867,099.80
  4. Step 4: Simplify right side
    989,134.40x = 1,286,517,360,619.68
  5. Step 5: Solve for x
    x = 1,286,517,360,619.68/989,134.40
  6. Step 6: Final answer
    x = 1,300,649.70

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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.