Finding the Fourth Proportional to 910,853.20, 1,257,088.17 and 528,880.06
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Solution
The fourth proportional to 910,853.20, 1,257,088.17 and 528,880.06 is: 729,918.79
Step by Step Solution
- Step 1: Write the proportion equation
910,853.20 : 1,257,088.17 = 528,880.06 : x - Step 2: Convert to fraction form
910,853.20/1,257,088.17 = 528,880.06/x - Step 3: Cross multiply
910,853.20x = 1,257,088.17 × 528,880.06 - Step 4: Simplify right side
910,853.20x = 664,848,866,774.89 - Step 5: Solve for x
x = 664,848,866,774.89/910,853.20 - Step 6: Final answer
x = 729,918.79
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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.