Finding the Fourth Proportional to 2,167,680.48, 2,990,788.27 and 1,249,837.48
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Solution
The fourth proportional to 2,167,680.48, 2,990,788.27 and 1,249,837.48 is: 1,724,423.55
Step by Step Solution
- Step 1: Write the proportion equation
2,167,680.48 : 2,990,788.27 = 1,249,837.48 : x - Step 2: Convert to fraction form
2,167,680.48/2,990,788.27 = 1,249,837.48/x - Step 3: Cross multiply
2,167,680.48x = 2,990,788.27 × 1,249,837.48 - Step 4: Simplify right side
2,167,680.48x = 3,737,999,274,590.36 - Step 5: Solve for x
x = 3,737,999,274,590.36/2,167,680.48 - Step 6: Final answer
x = 1,724,423.55
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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.