Finding the Fourth Proportional to 1,938,351.92, 2,674,925.64 and 1,078,893.68
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Solution
The fourth proportional to 1,938,351.92, 2,674,925.64 and 1,078,893.68 is: 1,488,873.27
Step by Step Solution
- Step 1: Write the proportion equation
1,938,351.92 : 2,674,925.64 = 1,078,893.68 : x - Step 2: Convert to fraction form
1,938,351.92/2,674,925.64 = 1,078,893.68/x - Step 3: Cross multiply
1,938,351.92x = 2,674,925.64 × 1,078,893.68 - Step 4: Simplify right side
1,938,351.92x = 2,885,960,367,465.96 - Step 5: Solve for x
x = 2,885,960,367,465.96/1,938,351.92 - Step 6: Final answer
x = 1,488,873.27
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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.