Finding the Fourth Proportional to 418,874.34, 578,029.74 and 227,888.52
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Solution
The fourth proportional to 418,874.34, 578,029.74 and 227,888.52 is: 314,476.99
Step by Step Solution
- Step 1: Write the proportion equation
418,874.34 : 578,029.74 = 227,888.52 : x - Step 2: Convert to fraction form
418,874.34/578,029.74 = 227,888.52/x - Step 3: Cross multiply
418,874.34x = 578,029.74 × 227,888.52 - Step 4: Simplify right side
418,874.34x = 131,726,341,964.59 - Step 5: Solve for x
x = 131,726,341,964.59/418,874.34 - Step 6: Final answer
x = 314,476.99
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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.