Finding the Fourth Proportional to 1,973,128.71, 2,722,842 and 1,238,476.08
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Solution
The fourth proportional to 1,973,128.71, 2,722,842 and 1,238,476.08 is: 1,709,049.53
Step by Step Solution
- Step 1: Write the proportion equation
1,973,128.71 : 2,722,842 = 1,238,476.08 : x - Step 2: Convert to fraction form
1,973,128.71/2,722,842 = 1,238,476.08/x - Step 3: Cross multiply
1,973,128.71x = 2,722,842 × 1,238,476.08 - Step 4: Simplify right side
1,973,128.71x = 3,372,174,686,619.36 - Step 5: Solve for x
x = 3,372,174,686,619.36/1,973,128.71 - Step 6: Final answer
x = 1,709,049.53
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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.