Finding the Third Proportional to 388,630.13 and 571,831.31
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Solution
The third proportional to 388,630.13 and 571,831.31 is: 841,393.99
Step by Step Solution
- Step 1: Write the proportion equation
388,630.13 : 571,831.31 = 571,831.31 : x - Step 2: Convert to fraction form
388,630.13/571,831.31 = 571,831.31/x - Step 3: Cross multiply
388,630.13x = 571,831.31 × 571,831.31 - Step 4: Simplify right side
388,630.13x = 326,991,049,955.47 - Step 5: Solve for x
x = 326,991,049,955.47/388,630.13 - Step 6: Final answer
x = 841,393.99
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Why These Related Problems?
These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.