Finding the Fourth Proportional to 528,560.70, 729,275.67 and 313,748.70
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Solution
The fourth proportional to 528,560.70, 729,275.67 and 313,748.70 is: 432,891.23
Step by Step Solution
- Step 1: Write the proportion equation
528,560.70 : 729,275.67 = 313,748.70 : x - Step 2: Convert to fraction form
528,560.70/729,275.67 = 313,748.70/x - Step 3: Cross multiply
528,560.70x = 729,275.67 × 313,748.70 - Step 4: Simplify right side
528,560.70x = 228,809,293,404.13 - Step 5: Solve for x
x = 228,809,293,404.13/528,560.70 - Step 6: Final answer
x = 432,891.23
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1.5x scale
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.