Finding the Fourth Proportional to 674,812.92, 931,209.66 and 368,905.08
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Solution
The fourth proportional to 674,812.92, 931,209.66 and 368,905.08 is: 509,071.42
Step by Step Solution
- Step 1: Write the proportion equation
674,812.92 : 931,209.66 = 368,905.08 : x - Step 2: Convert to fraction form
674,812.92/931,209.66 = 368,905.08/x - Step 3: Cross multiply
674,812.92x = 931,209.66 × 368,905.08 - Step 4: Simplify right side
674,812.92x = 343,527,974,119.07 - Step 5: Solve for x
x = 343,527,974,119.07/674,812.92 - Step 6: Final answer
x = 509,071.42
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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.