Finding the Fourth Proportional to 2,120,526.92, 2,926,108.68 and 1,260,921.08
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Solution
The fourth proportional to 2,120,526.92, 2,926,108.68 and 1,260,921.08 is: 1,739,941.18
Step by Step Solution
- Step 1: Write the proportion equation
2,120,526.92 : 2,926,108.68 = 1,260,921.08 : x - Step 2: Convert to fraction form
2,120,526.92/2,926,108.68 = 1,260,921.08/x - Step 3: Cross multiply
2,120,526.92x = 2,926,108.68 × 1,260,921.08 - Step 4: Simplify right side
2,120,526.92x = 3,689,592,116,982.97 - Step 5: Solve for x
x = 3,689,592,116,982.97/2,120,526.92 - Step 6: Final answer
x = 1,739,941.18
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1.5x scale
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.