Finding the Fourth Proportional to 2,113,675.84, 2,917,391.58 and 1,298,073.88
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Solution
The fourth proportional to 2,113,675.84, 2,917,391.58 and 1,298,073.88 is: 1,791,660.64
Step by Step Solution
- Step 1: Write the proportion equation
2,113,675.84 : 2,917,391.58 = 1,298,073.88 : x - Step 2: Convert to fraction form
2,113,675.84/2,917,391.58 = 1,298,073.88/x - Step 3: Cross multiply
2,113,675.84x = 2,917,391.58 × 1,298,073.88 - Step 4: Simplify right side
2,113,675.84x = 3,786,989,807,729.93 - Step 5: Solve for x
x = 3,786,989,807,729.93/2,113,675.84 - Step 6: Final answer
x = 1,791,660.64
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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.