Finding the Fourth Proportional to 1,665,217.19, 2,298,055.44 and 1,020,512.87
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Solution
The fourth proportional to 1,665,217.19, 2,298,055.44 and 1,020,512.87 is: 1,408,341.90
Step by Step Solution
- Step 1: Write the proportion equation
1,665,217.19 : 2,298,055.44 = 1,020,512.87 : x - Step 2: Convert to fraction form
1,665,217.19/2,298,055.44 = 1,020,512.87/x - Step 3: Cross multiply
1,665,217.19x = 2,298,055.44 × 1,020,512.87 - Step 4: Simplify right side
1,665,217.19x = 2,345,195,141,003.24 - Step 5: Solve for x
x = 2,345,195,141,003.24/1,665,217.19 - Step 6: Final answer
x = 1,408,341.90
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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.