Finding the Fourth Proportional to 720,495.61, 1,079,248.66 and 420,064.99
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Solution
The fourth proportional to 720,495.61, 1,079,248.66 and 420,064.99 is: 629,226.01
Step by Step Solution
- Step 1: Write the proportion equation
720,495.61 : 1,079,248.66 = 420,064.99 : x - Step 2: Convert to fraction form
720,495.61/1,079,248.66 = 420,064.99/x - Step 3: Cross multiply
720,495.61x = 1,079,248.66 × 420,064.99 - Step 4: Simplify right side
720,495.61x = 453,354,573,822.13 - Step 5: Solve for x
x = 453,354,573,822.13/720,495.61 - Step 6: Final answer
x = 629,226.01
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.