Finding the Fourth Proportional to 647,729.12, 970,292.49 and 322,537.52
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Solution
The fourth proportional to 647,729.12, 970,292.49 and 322,537.52 is: 483,158.35
Step by Step Solution
- Step 1: Write the proportion equation
647,729.12 : 970,292.49 = 322,537.52 : x - Step 2: Convert to fraction form
647,729.12/970,292.49 = 322,537.52/x - Step 3: Cross multiply
647,729.12x = 970,292.49 × 322,537.52 - Step 4: Simplify right side
647,729.12x = 312,955,733,399.23 - Step 5: Solve for x
x = 312,955,733,399.23/647,729.12 - Step 6: Final answer
x = 483,158.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.