Finding the Fourth Proportional to 528,516.80, 792,772.24 and 129,159.68
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Solution
The fourth proportional to 528,516.80, 792,772.24 and 129,159.68 is: 193,738.80
Step by Step Solution
- Step 1: Write the proportion equation
528,516.80 : 792,772.24 = 129,159.68 : x - Step 2: Convert to fraction form
528,516.80/792,772.24 = 129,159.68/x - Step 3: Cross multiply
528,516.80x = 792,772.24 × 129,159.68 - Step 4: Simplify right side
528,516.80x = 102,394,208,831.28 - Step 5: Solve for x
x = 102,394,208,831.28/528,516.80 - Step 6: Final answer
x = 193,738.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.