Finding the Fourth Proportional to 1,265,523.63, 1,747,237.68 and 1,129,323.35
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Solution
The fourth proportional to 1,265,523.63, 1,747,237.68 and 1,129,323.35 is: 1,559,193.57
Step by Step Solution
- Step 1: Write the proportion equation
1,265,523.63 : 1,747,237.68 = 1,129,323.35 : x - Step 2: Convert to fraction form
1,265,523.63/1,747,237.68 = 1,129,323.35/x - Step 3: Cross multiply
1,265,523.63x = 1,747,237.68 × 1,129,323.35 - Step 4: Simplify right side
1,265,523.63x = 1,973,196,301,287.64 - Step 5: Solve for x
x = 1,973,196,301,287.64/1,265,523.63 - Step 6: Final answer
x = 1,559,193.57
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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.