Finding the Fourth Proportional to 860,453.58, 1,187,433.62 and 467,990.06
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Solution
The fourth proportional to 860,453.58, 1,187,433.62 and 467,990.06 is: 645,830.45
Step by Step Solution
- Step 1: Write the proportion equation
860,453.58 : 1,187,433.62 = 467,990.06 : x - Step 2: Convert to fraction form
860,453.58/1,187,433.62 = 467,990.06/x - Step 3: Cross multiply
860,453.58x = 1,187,433.62 × 467,990.06 - Step 4: Simplify right side
860,453.58x = 555,707,127,180.11 - Step 5: Solve for x
x = 555,707,127,180.11/860,453.58 - Step 6: Final answer
x = 645,830.45
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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.