Finding the Fourth Proportional to 418,879.74, 578,047.68 and 227,888.76
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Solution
The fourth proportional to 418,879.74, 578,047.68 and 227,888.76 is: 314,483.03
Step by Step Solution
- Step 1: Write the proportion equation
418,879.74 : 578,047.68 = 227,888.76 : x - Step 2: Convert to fraction form
418,879.74/578,047.68 = 227,888.76/x - Step 3: Cross multiply
418,879.74x = 578,047.68 × 227,888.76 - Step 4: Simplify right side
418,879.74x = 131,730,569,016.08 - Step 5: Solve for x
x = 131,730,569,016.08/418,879.74 - Step 6: Final answer
x = 314,483.03
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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.