Home / 744,093.44-1,114,913.28-428,815.36

Finding the Fourth Proportional to 744,093.44, 1,114,913.28 and 428,815.36

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Solution

The fourth proportional to 744,093.44, 1,114,913.28 and 428,815.36 is: 642,516.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,093.44 : 1,114,913.28 = 428,815.36 : x
  2. Step 2: Convert to fraction form
    744,093.44/1,114,913.28 = 428,815.36/x
  3. Step 3: Cross multiply
    744,093.44x = 1,114,913.28 × 428,815.36
  4. Step 4: Simplify right side
    744,093.44x = 478,091,939,531.98
  5. Step 5: Solve for x
    x = 478,091,939,531.98/744,093.44
  6. Step 6: Final answer
    x = 642,516.00

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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.