Finding the Fourth Proportional to 890,643.67, 1,337,816.19 and 720,058.20
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Solution
The fourth proportional to 890,643.67, 1,337,816.19 and 720,058.20 is: 1,081,583.52
Step by Step Solution
- Step 1: Write the proportion equation
890,643.67 : 1,337,816.19 = 720,058.20 : x - Step 2: Convert to fraction form
890,643.67/1,337,816.19 = 720,058.20/x - Step 3: Cross multiply
890,643.67x = 1,337,816.19 × 720,058.20 - Step 4: Simplify right side
890,643.67x = 963,305,517,702.26 - Step 5: Solve for x
x = 963,305,517,702.26/890,643.67 - Step 6: Final answer
x = 1,081,583.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.