Finding the Fourth Proportional to 1,603,903.47, 2,213,386.74 and 878,778.66
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Solution
The fourth proportional to 1,603,903.47, 2,213,386.74 and 878,778.66 is: 1,212,714.52
Step by Step Solution
- Step 1: Write the proportion equation
1,603,903.47 : 2,213,386.74 = 878,778.66 : x - Step 2: Convert to fraction form
1,603,903.47/2,213,386.74 = 878,778.66/x - Step 3: Cross multiply
1,603,903.47x = 2,213,386.74 × 878,778.66 - Step 4: Simplify right side
1,603,903.47x = 1,945,077,033,438.97 - Step 5: Solve for x
x = 1,945,077,033,438.97/1,603,903.47 - Step 6: Final answer
x = 1,212,714.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.