Finding the Fourth Proportional to 1,587,570.36, 2,190,862.26 and 862,423.53
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Solution
The fourth proportional to 1,587,570.36, 2,190,862.26 and 862,423.53 is: 1,190,152.71
Step by Step Solution
- Step 1: Write the proportion equation
1,587,570.36 : 2,190,862.26 = 862,423.53 : x - Step 2: Convert to fraction form
1,587,570.36/2,190,862.26 = 862,423.53/x - Step 3: Cross multiply
1,587,570.36x = 2,190,862.26 × 862,423.53 - Step 4: Simplify right side
1,587,570.36x = 1,889,451,164,012.98 - Step 5: Solve for x
x = 1,889,451,164,012.98/1,587,570.36 - Step 6: Final answer
x = 1,190,152.71
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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.