Finding the Fourth Proportional to 724,030.21, 999,161.58 and 401,742.55
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Solution
The fourth proportional to 724,030.21, 999,161.58 and 401,742.55 is: 554,404.66
Step by Step Solution
- Step 1: Write the proportion equation
724,030.21 : 999,161.58 = 401,742.55 : x - Step 2: Convert to fraction form
724,030.21/999,161.58 = 401,742.55/x - Step 3: Cross multiply
724,030.21x = 999,161.58 × 401,742.55 - Step 4: Simplify right side
724,030.21x = 401,405,721,011.23 - Step 5: Solve for x
x = 401,405,721,011.23/724,030.21 - Step 6: Final answer
x = 554,404.66
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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.