Finding the Fourth Proportional to 1,228,655.62, 1,695,561.73 and 684,776.26
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Solution
The fourth proportional to 1,228,655.62, 1,695,561.73 and 684,776.26 is: 945,000.70
Step by Step Solution
- Step 1: Write the proportion equation
1,228,655.62 : 1,695,561.73 = 684,776.26 : x - Step 2: Convert to fraction form
1,228,655.62/1,695,561.73 = 684,776.26/x - Step 3: Cross multiply
1,228,655.62x = 1,695,561.73 × 684,776.26 - Step 4: Simplify right side
1,228,655.62x = 1,161,080,420,068.53 - Step 5: Solve for x
x = 1,161,080,420,068.53/1,228,655.62 - Step 6: Final answer
x = 945,000.70
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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.