Finding the Fourth Proportional to 479,663.56, 661,991.70 and 398,948.68
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Solution
The fourth proportional to 479,663.56, 661,991.70 and 398,948.68 is: 550,595.74
Step by Step Solution
- Step 1: Write the proportion equation
479,663.56 : 661,991.70 = 398,948.68 : x - Step 2: Convert to fraction form
479,663.56/661,991.70 = 398,948.68/x - Step 3: Cross multiply
479,663.56x = 661,991.70 × 398,948.68 - Step 4: Simplify right side
479,663.56x = 264,100,714,885.96 - Step 5: Solve for x
x = 264,100,714,885.96/479,663.56 - Step 6: Final answer
x = 550,595.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.