Finding the Fourth Proportional to 926,909.21, 1,389,855.84 and 287,035.31
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Solution
The fourth proportional to 926,909.21, 1,389,855.84 and 287,035.31 is: 430,395.66
Step by Step Solution
- Step 1: Write the proportion equation
926,909.21 : 1,389,855.84 = 287,035.31 : x - Step 2: Convert to fraction form
926,909.21/1,389,855.84 = 287,035.31/x - Step 3: Cross multiply
926,909.21x = 1,389,855.84 × 287,035.31 - Step 4: Simplify right side
926,909.21x = 398,937,701,889.71 - Step 5: Solve for x
x = 398,937,701,889.71/926,909.21 - Step 6: Final answer
x = 430,395.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.