Finding the Fourth Proportional to 1,228,449.14, 1,695,261.42 and 684,572.99
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Solution
The fourth proportional to 1,228,449.14, 1,695,261.42 and 684,572.99 is: 944,711.62
Step by Step Solution
- Step 1: Write the proportion equation
1,228,449.14 : 1,695,261.42 = 684,572.99 : x - Step 2: Convert to fraction form
1,228,449.14/1,695,261.42 = 684,572.99/x - Step 3: Cross multiply
1,228,449.14x = 1,695,261.42 × 684,572.99 - Step 4: Simplify right side
1,228,449.14x = 1,160,530,170,644.74 - Step 5: Solve for x
x = 1,160,530,170,644.74/1,228,449.14 - Step 6: Final answer
x = 944,711.62
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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.