Home / 989,114.40-1,483,671.60-867,079.80

Finding the Fourth Proportional to 989,114.40, 1,483,671.60 and 867,079.80

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Solution

The fourth proportional to 989,114.40, 1,483,671.60 and 867,079.80 is: 1,300,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,114.40 : 1,483,671.60 = 867,079.80 : x
  2. Step 2: Convert to fraction form
    989,114.40/1,483,671.60 = 867,079.80/x
  3. Step 3: Cross multiply
    989,114.40x = 1,483,671.60 × 867,079.80
  4. Step 4: Simplify right side
    989,114.40x = 1,286,461,674,193.68
  5. Step 5: Solve for x
    x = 1,286,461,674,193.68/989,114.40
  6. Step 6: Final answer
    x = 1,300,619.70

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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.