Finding the Fourth Proportional to 720,529.02, 994,270.14 and 398,239.07
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Solution
The fourth proportional to 720,529.02, 994,270.14 and 398,239.07 is: 549,536.80
Step by Step Solution
- Step 1: Write the proportion equation
720,529.02 : 994,270.14 = 398,239.07 : x - Step 2: Convert to fraction form
720,529.02/994,270.14 = 398,239.07/x - Step 3: Cross multiply
720,529.02x = 994,270.14 × 398,239.07 - Step 4: Simplify right side
720,529.02x = 395,957,210,911.02 - Step 5: Solve for x
x = 395,957,210,911.02/720,529.02 - Step 6: Final answer
x = 549,536.80
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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.