Finding the Fourth Proportional to 809,133.74, 1,207,548.08 and 719,455.40
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Solution
The fourth proportional to 809,133.74, 1,207,548.08 and 719,455.40 is: 1,073,712.47
Step by Step Solution
- Step 1: Write the proportion equation
809,133.74 : 1,207,548.08 = 719,455.40 : x - Step 2: Convert to fraction form
809,133.74/1,207,548.08 = 719,455.40/x - Step 3: Cross multiply
809,133.74x = 1,207,548.08 × 719,455.40 - Step 4: Simplify right side
809,133.74x = 868,776,986,915.63 - Step 5: Solve for x
x = 868,776,986,915.63/809,133.74 - Step 6: Final answer
x = 1,073,712.47
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.