Home / 804,954.40-1,207,431.60-744,128.80

Finding the Fourth Proportional to 804,954.40, 1,207,431.60 and 744,128.80

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Solution

The fourth proportional to 804,954.40, 1,207,431.60 and 744,128.80 is: 1,116,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,954.40 : 1,207,431.60 = 744,128.80 : x
  2. Step 2: Convert to fraction form
    804,954.40/1,207,431.60 = 744,128.80/x
  3. Step 3: Cross multiply
    804,954.40x = 1,207,431.60 × 744,128.80
  4. Step 4: Simplify right side
    804,954.40x = 898,484,627,590.08
  5. Step 5: Solve for x
    x = 898,484,627,590.08/804,954.40
  6. Step 6: Final answer
    x = 1,116,193.20

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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.