Finding the Fourth Proportional to 702,693.09, 969,715.35 and 380,403.09
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Solution
The fourth proportional to 702,693.09, 969,715.35 and 380,403.09 is: 524,955.66
Step by Step Solution
- Step 1: Write the proportion equation
702,693.09 : 969,715.35 = 380,403.09 : x - Step 2: Convert to fraction form
702,693.09/969,715.35 = 380,403.09/x - Step 3: Cross multiply
702,693.09x = 969,715.35 × 380,403.09 - Step 4: Simplify right side
702,693.09x = 368,882,715,560.43 - Step 5: Solve for x
x = 368,882,715,560.43/702,693.09 - Step 6: Final answer
x = 524,955.66
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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.