Finding the Fourth Proportional to 2,112,283.42, 2,914,948.42 and 1,145,412.09
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Solution
The fourth proportional to 2,112,283.42, 2,914,948.42 and 1,145,412.09 is: 1,580,667.22
Step by Step Solution
- Step 1: Write the proportion equation
2,112,283.42 : 2,914,948.42 = 1,145,412.09 : x - Step 2: Convert to fraction form
2,112,283.42/2,914,948.42 = 1,145,412.09/x - Step 3: Cross multiply
2,112,283.42x = 2,914,948.42 × 1,145,412.09 - Step 4: Simplify right side
2,112,283.42x = 3,338,817,159,130.87 - Step 5: Solve for x
x = 3,338,817,159,130.87/2,112,283.42 - Step 6: Final answer
x = 1,580,667.22
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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.