Finding the Fourth Proportional to 717,313.22, 989,877.21 and 395,025.96
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Solution
The fourth proportional to 717,313.22, 989,877.21 and 395,025.96 is: 545,127.55
Step by Step Solution
- Step 1: Write the proportion equation
717,313.22 : 989,877.21 = 395,025.96 : x - Step 2: Convert to fraction form
717,313.22/989,877.21 = 395,025.96/x - Step 3: Cross multiply
717,313.22x = 989,877.21 × 395,025.96 - Step 4: Simplify right side
717,313.22x = 391,027,197,393.06 - Step 5: Solve for x
x = 391,027,197,393.06/717,313.22 - Step 6: Final answer
x = 545,127.55
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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.