Finding the Fourth Proportional to 1,587,363.57, 2,190,601.71 and 862,211.07
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Solution
The fourth proportional to 1,587,363.57, 2,190,601.71 and 862,211.07 is: 1,189,872.99
Step by Step Solution
- Step 1: Write the proportion equation
1,587,363.57 : 2,190,601.71 = 862,211.07 : x - Step 2: Convert to fraction form
1,587,363.57/2,190,601.71 = 862,211.07/x - Step 3: Cross multiply
1,587,363.57x = 2,190,601.71 × 862,211.07 - Step 4: Simplify right side
1,587,363.57x = 1,888,761,044,322.93 - Step 5: Solve for x
x = 1,888,761,044,322.93/1,587,363.57 - Step 6: Final answer
x = 1,189,872.99
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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.