Finding the Fourth Proportional to 860,805.92, 1,291,355.94 and 355,090.44
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Solution
The fourth proportional to 860,805.92, 1,291,355.94 and 355,090.44 is: 532,696.32
Step by Step Solution
- Step 1: Write the proportion equation
860,805.92 : 1,291,355.94 = 355,090.44 : x - Step 2: Convert to fraction form
860,805.92/1,291,355.94 = 355,090.44/x - Step 3: Cross multiply
860,805.92x = 1,291,355.94 × 355,090.44 - Step 4: Simplify right side
860,805.92x = 458,548,148,931.21 - Step 5: Solve for x
x = 458,548,148,931.21/860,805.92 - Step 6: Final answer
x = 532,696.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.