Finding the Fourth Proportional to 860,694.88, 1,288,549.19 and 648,357.05
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Solution
The fourth proportional to 860,694.88, 1,288,549.19 and 648,357.05 is: 970,657.52
Step by Step Solution
- Step 1: Write the proportion equation
860,694.88 : 1,288,549.19 = 648,357.05 : x - Step 2: Convert to fraction form
860,694.88/1,288,549.19 = 648,357.05/x - Step 3: Cross multiply
860,694.88x = 1,288,549.19 × 648,357.05 - Step 4: Simplify right side
860,694.88x = 835,439,953,721.03 - Step 5: Solve for x
x = 835,439,953,721.03/860,694.88 - Step 6: Final answer
x = 970,657.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.