Finding the Fourth Proportional to 717,369.03, 989,957.19 and 395,109.13
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Solution
The fourth proportional to 717,369.03, 989,957.19 and 395,109.13 is: 545,243.95
Step by Step Solution
- Step 1: Write the proportion equation
717,369.03 : 989,957.19 = 395,109.13 : x - Step 2: Convert to fraction form
717,369.03/989,957.19 = 395,109.13/x - Step 3: Cross multiply
717,369.03x = 989,957.19 × 395,109.13 - Step 4: Simplify right side
717,369.03x = 391,141,124,078.15 - Step 5: Solve for x
x = 391,141,124,078.15/717,369.03 - Step 6: Final answer
x = 545,243.95
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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.