Finding the Fourth Proportional to 911,943.84, 1,367,939.12 and 432,059.28
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Solution
The fourth proportional to 911,943.84, 1,367,939.12 and 432,059.28 is: 648,099.99
Step by Step Solution
- Step 1: Write the proportion equation
911,943.84 : 1,367,939.12 = 432,059.28 : x - Step 2: Convert to fraction form
911,943.84/1,367,939.12 = 432,059.28/x - Step 3: Cross multiply
911,943.84x = 1,367,939.12 × 432,059.28 - Step 4: Simplify right side
911,943.84x = 591,030,791,271.03 - Step 5: Solve for x
x = 591,030,791,271.03/911,943.84 - Step 6: Final answer
x = 648,099.99
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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.