Finding the Fourth Proportional to 542,838.99, 813,428.13 and 290,155.44
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Solution
The fourth proportional to 542,838.99, 813,428.13 and 290,155.44 is: 434,789.32
Step by Step Solution
- Step 1: Write the proportion equation
542,838.99 : 813,428.13 = 290,155.44 : x - Step 2: Convert to fraction form
542,838.99/813,428.13 = 290,155.44/x - Step 3: Cross multiply
542,838.99x = 813,428.13 × 290,155.44 - Step 4: Simplify right side
542,838.99x = 236,020,596,968.53 - Step 5: Solve for x
x = 236,020,596,968.53/542,838.99 - Step 6: Final answer
x = 434,789.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.