Finding the Fourth Proportional to 1,587,423.20, 2,190,684.76 and 862,312.41
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Solution
The fourth proportional to 1,587,423.20, 2,190,684.76 and 862,312.41 is: 1,190,013.26
Step by Step Solution
- Step 1: Write the proportion equation
1,587,423.20 : 2,190,684.76 = 862,312.41 : x - Step 2: Convert to fraction form
1,587,423.20/2,190,684.76 = 862,312.41/x - Step 3: Cross multiply
1,587,423.20x = 2,190,684.76 × 862,312.41 - Step 4: Simplify right side
1,587,423.20x = 1,889,054,650,634.31 - Step 5: Solve for x
x = 1,889,054,650,634.31/1,587,423.20 - Step 6: Final answer
x = 1,190,013.26
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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.