Finding the Fourth Proportional to 715,072.70, 986,831.34 and 409,245.08
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Solution
The fourth proportional to 715,072.70, 986,831.34 and 409,245.08 is: 564,775.96
Step by Step Solution
- Step 1: Write the proportion equation
715,072.70 : 986,831.34 = 409,245.08 : x - Step 2: Convert to fraction form
715,072.70/986,831.34 = 409,245.08/x - Step 3: Cross multiply
715,072.70x = 986,831.34 × 409,245.08 - Step 4: Simplify right side
715,072.70x = 403,855,870,684.81 - Step 5: Solve for x
x = 403,855,870,684.81/715,072.70 - Step 6: Final answer
x = 564,775.96
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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.