Finding the Fourth Proportional to 1,989,129.84, 2,984,576.85 and 1,042,275.48
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Solution
The fourth proportional to 1,989,129.84, 2,984,576.85 and 1,042,275.48 is: 1,563,875.42
Step by Step Solution
- Step 1: Write the proportion equation
1,989,129.84 : 2,984,576.85 = 1,042,275.48 : x - Step 2: Convert to fraction form
1,989,129.84/2,984,576.85 = 1,042,275.48/x - Step 3: Cross multiply
1,989,129.84x = 2,984,576.85 × 1,042,275.48 - Step 4: Simplify right side
1,989,129.84x = 3,110,751,268,930.64 - Step 5: Solve for x
x = 3,110,751,268,930.64/1,989,129.84 - Step 6: Final answer
x = 1,563,875.42
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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.