Finding the Fourth Proportional to 841,214.72, 1,160,942.56 and 478,653.84
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Solution
The fourth proportional to 841,214.72, 1,160,942.56 and 478,653.84 is: 660,579.99
Step by Step Solution
- Step 1: Write the proportion equation
841,214.72 : 1,160,942.56 = 478,653.84 : x - Step 2: Convert to fraction form
841,214.72/1,160,942.56 = 478,653.84/x - Step 3: Cross multiply
841,214.72x = 1,160,942.56 × 478,653.84 - Step 4: Simplify right side
841,214.72x = 555,689,614,363.43 - Step 5: Solve for x
x = 555,689,614,363.43/841,214.72 - Step 6: Final answer
x = 660,579.99
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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.