Finding the Fourth Proportional to 543,213.03, 749,726.76 and 313,729.08
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Solution
The fourth proportional to 543,213.03, 749,726.76 and 313,729.08 is: 432,999.71
Step by Step Solution
- Step 1: Write the proportion equation
543,213.03 : 749,726.76 = 313,729.08 : x - Step 2: Convert to fraction form
543,213.03/749,726.76 = 313,729.08/x - Step 3: Cross multiply
543,213.03x = 749,726.76 × 313,729.08 - Step 4: Simplify right side
543,213.03x = 235,211,086,666.18 - Step 5: Solve for x
x = 235,211,086,666.18/543,213.03 - Step 6: Final answer
x = 432,999.71
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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.