Finding the Fourth Proportional to 2,128,132.08, 2,936,829.69 and 1,161,283.68
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Solution
The fourth proportional to 2,128,132.08, 2,936,829.69 and 1,161,283.68 is: 1,602,575.53
Step by Step Solution
- Step 1: Write the proportion equation
2,128,132.08 : 2,936,829.69 = 1,161,283.68 : x - Step 2: Convert to fraction form
2,128,132.08/2,936,829.69 = 1,161,283.68/x - Step 3: Cross multiply
2,128,132.08x = 2,936,829.69 × 1,161,283.68 - Step 4: Simplify right side
2,128,132.08x = 3,410,492,389,936.46 - Step 5: Solve for x
x = 3,410,492,389,936.46/2,128,132.08 - Step 6: Final answer
x = 1,602,575.53
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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.