Finding the Fourth Proportional to 840,915.14, 1,160,446.70 and 458,944.65
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Solution
The fourth proportional to 840,915.14, 1,160,446.70 and 458,944.65 is: 633,334.78
Step by Step Solution
- Step 1: Write the proportion equation
840,915.14 : 1,160,446.70 = 458,944.65 : x - Step 2: Convert to fraction form
840,915.14/1,160,446.70 = 458,944.65/x - Step 3: Cross multiply
840,915.14x = 1,160,446.70 × 458,944.65 - Step 4: Simplify right side
840,915.14x = 532,580,805,722.52 - Step 5: Solve for x
x = 532,580,805,722.52/840,915.14 - Step 6: Final answer
x = 633,334.78
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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.