Finding the Fourth Proportional to 420,962.49, 580,864.17 and 239,682.06
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Solution
The fourth proportional to 420,962.49, 580,864.17 and 239,682.06 is: 330,724.77
Step by Step Solution
- Step 1: Write the proportion equation
420,962.49 : 580,864.17 = 239,682.06 : x - Step 2: Convert to fraction form
420,962.49/580,864.17 = 239,682.06/x - Step 3: Cross multiply
420,962.49x = 580,864.17 × 239,682.06 - Step 4: Simplify right side
420,962.49x = 139,222,720,845.79 - Step 5: Solve for x
x = 139,222,720,845.79/420,962.49 - Step 6: Final answer
x = 330,724.77
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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.