Finding the Fourth Proportional to 744,702.12, 1,117,090.08 and 212,301.59
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Solution
The fourth proportional to 744,702.12, 1,117,090.08 and 212,301.59 is: 318,462.90
Step by Step Solution
- Step 1: Write the proportion equation
744,702.12 : 1,117,090.08 = 212,301.59 : x - Step 2: Convert to fraction form
744,702.12/1,117,090.08 = 212,301.59/x - Step 3: Cross multiply
744,702.12x = 1,117,090.08 × 212,301.59 - Step 4: Simplify right side
744,702.12x = 237,159,994,571.78 - Step 5: Solve for x
x = 237,159,994,571.78/744,702.12 - Step 6: Final answer
x = 318,462.90
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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.