Finding the Fourth Proportional to 840,725.62, 1,160,226.96 and 478,201.66
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Solution
The fourth proportional to 840,725.62, 1,160,226.96 and 478,201.66 is: 659,932.85
Step by Step Solution
- Step 1: Write the proportion equation
840,725.62 : 1,160,226.96 = 478,201.66 : x - Step 2: Convert to fraction form
840,725.62/1,160,226.96 = 478,201.66/x - Step 3: Cross multiply
840,725.62x = 1,160,226.96 × 478,201.66 - Step 4: Simplify right side
840,725.62x = 554,822,458,248.75 - Step 5: Solve for x
x = 554,822,458,248.75/840,725.62 - Step 6: Final answer
x = 659,932.85
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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.