Finding the Fourth Proportional to 875,270.40, 1,207,872.18 and 472,862.40
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Solution
The fourth proportional to 875,270.40, 1,207,872.18 and 472,862.40 is: 652,549.59
Step by Step Solution
- Step 1: Write the proportion equation
875,270.40 : 1,207,872.18 = 472,862.40 : x - Step 2: Convert to fraction form
875,270.40/1,207,872.18 = 472,862.40/x - Step 3: Cross multiply
875,270.40x = 1,207,872.18 × 472,862.40 - Step 4: Simplify right side
875,270.40x = 571,157,337,928.03 - Step 5: Solve for x
x = 571,157,337,928.03/875,270.40 - Step 6: Final answer
x = 652,549.59
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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.