Finding the Fourth Proportional to 2,156,703.96, 3,235,727.18 and 640,394.80
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Solution
The fourth proportional to 2,156,703.96, 3,235,727.18 and 640,394.80 is: 960,791.51
Step by Step Solution
- Step 1: Write the proportion equation
2,156,703.96 : 3,235,727.18 = 640,394.80 : x - Step 2: Convert to fraction form
2,156,703.96/3,235,727.18 = 640,394.80/x - Step 3: Cross multiply
2,156,703.96x = 3,235,727.18 × 640,394.80 - Step 4: Simplify right side
2,156,703.96x = 2,072,142,860,290.66 - Step 5: Solve for x
x = 2,072,142,860,290.66/2,156,703.96 - Step 6: Final answer
x = 960,791.51
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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.