Finding the Fourth Proportional to 912,261.09, 1,258,917.15 and 509,853.09
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Solution
The fourth proportional to 912,261.09, 1,258,917.15 and 509,853.09 is: 703,595.50
Step by Step Solution
- Step 1: Write the proportion equation
912,261.09 : 1,258,917.15 = 509,853.09 : x - Step 2: Convert to fraction form
912,261.09/1,258,917.15 = 509,853.09/x - Step 3: Cross multiply
912,261.09x = 1,258,917.15 × 509,853.09 - Step 4: Simplify right side
912,261.09x = 641,862,798,981.49 - Step 5: Solve for x
x = 641,862,798,981.49/912,261.09 - Step 6: Final answer
x = 703,595.50
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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.