Finding the Fourth Proportional to 926,405.68, 1,388,173.74 and 642,648.10
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Solution
The fourth proportional to 926,405.68, 1,388,173.74 and 642,648.10 is: 962,976.84
Step by Step Solution
- Step 1: Write the proportion equation
926,405.68 : 1,388,173.74 = 642,648.10 : x - Step 2: Convert to fraction form
926,405.68/1,388,173.74 = 642,648.10/x - Step 3: Cross multiply
926,405.68x = 1,388,173.74 × 642,648.10 - Step 4: Simplify right side
926,405.68x = 892,107,216,480.89 - Step 5: Solve for x
x = 892,107,216,480.89/926,405.68 - Step 6: Final answer
x = 962,976.84
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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.