Finding the Fourth Proportional to 2,164,750.92, 2,986,985.16 and 1,390,552.92
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Solution
The fourth proportional to 2,164,750.92, 2,986,985.16 and 1,390,552.92 is: 1,918,724.64
Step by Step Solution
- Step 1: Write the proportion equation
2,164,750.92 : 2,986,985.16 = 1,390,552.92 : x - Step 2: Convert to fraction form
2,164,750.92/2,986,985.16 = 1,390,552.92/x - Step 3: Cross multiply
2,164,750.92x = 2,986,985.16 × 1,390,552.92 - Step 4: Simplify right side
2,164,750.92x = 4,153,560,936,234.67 - Step 5: Solve for x
x = 4,153,560,936,234.67/2,164,750.92 - Step 6: Final answer
x = 1,918,724.64
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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.