Finding the Fourth Proportional to 724,919.52, 1,000,361.14 and 402,650.19
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Solution
The fourth proportional to 724,919.52, 1,000,361.14 and 402,650.19 is: 555,641.82
Step by Step Solution
- Step 1: Write the proportion equation
724,919.52 : 1,000,361.14 = 402,650.19 : x - Step 2: Convert to fraction form
724,919.52/1,000,361.14 = 402,650.19/x - Step 3: Cross multiply
724,919.52x = 1,000,361.14 × 402,650.19 - Step 4: Simplify right side
724,919.52x = 402,795,602,082.99 - Step 5: Solve for x
x = 402,795,602,082.99/724,919.52 - Step 6: Final answer
x = 555,641.82
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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.