Finding the Fourth Proportional to 930,831.15, 1,284,564.41 and 517,406.74
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Solution
The fourth proportional to 930,831.15, 1,284,564.41 and 517,406.74 is: 714,030.99
Step by Step Solution
- Step 1: Write the proportion equation
930,831.15 : 1,284,564.41 = 517,406.74 : x - Step 2: Convert to fraction form
930,831.15/1,284,564.41 = 517,406.74/x - Step 3: Cross multiply
930,831.15x = 1,284,564.41 × 517,406.74 - Step 4: Simplify right side
930,831.15x = 664,642,283,698.12 - Step 5: Solve for x
x = 664,642,283,698.12/930,831.15 - Step 6: Final answer
x = 714,030.99
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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.