Finding the Fourth Proportional to 399,019.65, 598,530.17 and 319,562.99
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Solution
The fourth proportional to 399,019.65, 598,530.17 and 319,562.99 is: 479,345.03
Step by Step Solution
- Step 1: Write the proportion equation
399,019.65 : 598,530.17 = 319,562.99 : x - Step 2: Convert to fraction form
399,019.65/598,530.17 = 319,562.99/x - Step 3: Cross multiply
399,019.65x = 598,530.17 × 319,562.99 - Step 4: Simplify right side
399,019.65x = 191,268,086,139.94 - Step 5: Solve for x
x = 191,268,086,139.94/399,019.65 - Step 6: Final answer
x = 479,345.03
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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.