Finding the Fourth Proportional to 4,118,434.80, 6,178,235.40 and 1,278,250.80
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Solution
The fourth proportional to 4,118,434.80, 6,178,235.40 and 1,278,250.80 is: 1,917,557.21
Step by Step Solution
- Step 1: Write the proportion equation
4,118,434.80 : 6,178,235.40 = 1,278,250.80 : x - Step 2: Convert to fraction form
4,118,434.80/6,178,235.40 = 1,278,250.80/x - Step 3: Cross multiply
4,118,434.80x = 6,178,235.40 × 1,278,250.80 - Step 4: Simplify right side
4,118,434.80x = 7,897,334,342,638.32 - Step 5: Solve for x
x = 7,897,334,342,638.32/4,118,434.80 - Step 6: Final answer
x = 1,917,557.21
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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.