Finding the Fourth Proportional to 1,643,455.68, 2,267,839.71 and 908,379.06
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Solution
The fourth proportional to 1,643,455.68, 2,267,839.71 and 908,379.06 is: 1,253,491.73
Step by Step Solution
- Step 1: Write the proportion equation
1,643,455.68 : 2,267,839.71 = 908,379.06 : x - Step 2: Convert to fraction form
1,643,455.68/2,267,839.71 = 908,379.06/x - Step 3: Cross multiply
1,643,455.68x = 2,267,839.71 × 908,379.06 - Step 4: Simplify right side
1,643,455.68x = 2,060,058,092,661.27 - Step 5: Solve for x
x = 2,060,058,092,661.27/1,643,455.68 - Step 6: Final answer
x = 1,253,491.73
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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.