Finding the Fourth Proportional to 2,708,121.59, 3,730,926.81 and 1,891,031.05
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Solution
The fourth proportional to 2,708,121.59, 3,730,926.81 and 1,891,031.05 is: 2,605,236.96
Step by Step Solution
- Step 1: Write the proportion equation
2,708,121.59 : 3,730,926.81 = 1,891,031.05 : x - Step 2: Convert to fraction form
2,708,121.59/3,730,926.81 = 1,891,031.05/x - Step 3: Cross multiply
2,708,121.59x = 3,730,926.81 × 1,891,031.05 - Step 4: Simplify right side
2,708,121.59x = 7,055,298,458,641.53 - Step 5: Solve for x
x = 7,055,298,458,641.53/2,708,121.59 - Step 6: Final answer
x = 2,605,236.96
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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.