Finding the Fourth Proportional to 1,643,384.28, 2,267,827.63 and 918,237.05
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Solution
The fourth proportional to 1,643,384.28, 2,267,827.63 and 918,237.05 is: 1,267,143.28
Step by Step Solution
- Step 1: Write the proportion equation
1,643,384.28 : 2,267,827.63 = 918,237.05 : x - Step 2: Convert to fraction form
1,643,384.28/2,267,827.63 = 918,237.05/x - Step 3: Cross multiply
1,643,384.28x = 2,267,827.63 × 918,237.05 - Step 4: Simplify right side
1,643,384.28x = 2,082,403,339,244.96 - Step 5: Solve for x
x = 2,082,403,339,244.96/1,643,384.28 - Step 6: Final answer
x = 1,267,143.28
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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.