Finding the Fourth Proportional to 860,284.12, 1,187,221.98 and 478,327
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Solution
The fourth proportional to 860,284.12, 1,187,221.98 and 478,327 is: 660,107.88
Step by Step Solution
- Step 1: Write the proportion equation
860,284.12 : 1,187,221.98 = 478,327 : x - Step 2: Convert to fraction form
860,284.12/1,187,221.98 = 478,327/x - Step 3: Cross multiply
860,284.12x = 1,187,221.98 × 478,327 - Step 4: Simplify right side
860,284.12x = 567,880,328,027.46 - Step 5: Solve for x
x = 567,880,328,027.46/860,284.12 - Step 6: Final answer
x = 660,107.88
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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.