Finding the Fourth Proportional to 720,160.42, 993,831.80 and 397,877.95
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Solution
The fourth proportional to 720,160.42, 993,831.80 and 397,877.95 is: 549,077.33
Step by Step Solution
- Step 1: Write the proportion equation
720,160.42 : 993,831.80 = 397,877.95 : x - Step 2: Convert to fraction form
720,160.42/993,831.80 = 397,877.95/x - Step 3: Cross multiply
720,160.42x = 993,831.80 × 397,877.95 - Step 4: Simplify right side
720,160.42x = 395,423,759,043.65 - Step 5: Solve for x
x = 395,423,759,043.65/720,160.42 - Step 6: Final answer
x = 549,077.33
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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.