Finding the Fourth Proportional to 860,115.18, 1,186,989.36 and 472,959.96
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Solution
The fourth proportional to 860,115.18, 1,186,989.36 and 472,959.96 is: 652,701.47
Step by Step Solution
- Step 1: Write the proportion equation
860,115.18 : 1,186,989.36 = 472,959.96 : x - Step 2: Convert to fraction form
860,115.18/1,186,989.36 = 472,959.96/x - Step 3: Cross multiply
860,115.18x = 1,186,989.36 × 472,959.96 - Step 4: Simplify right side
860,115.18x = 561,398,440,226.03 - Step 5: Solve for x
x = 561,398,440,226.03/860,115.18 - Step 6: Final answer
x = 652,701.47
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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.