Finding the Fourth Proportional to 912,263.09, 1,258,919.91 and 509,855.09
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Solution
The fourth proportional to 912,263.09, 1,258,919.91 and 509,855.09 is: 703,598.26
Step by Step Solution
- Step 1: Write the proportion equation
912,263.09 : 1,258,919.91 = 509,855.09 : x - Step 2: Convert to fraction form
912,263.09/1,258,919.91 = 509,855.09/x - Step 3: Cross multiply
912,263.09x = 1,258,919.91 × 509,855.09 - Step 4: Simplify right side
912,263.09x = 641,866,724,015.84 - Step 5: Solve for x
x = 641,866,724,015.84/912,263.09 - Step 6: Final answer
x = 703,598.26
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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.