Finding the Fourth Proportional to 717,814.58, 990,548.33 and 395,472.65
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Solution
The fourth proportional to 717,814.58, 990,548.33 and 395,472.65 is: 545,732.53
Step by Step Solution
- Step 1: Write the proportion equation
717,814.58 : 990,548.33 = 395,472.65 : x - Step 2: Convert to fraction form
717,814.58/990,548.33 = 395,472.65/x - Step 3: Cross multiply
717,814.58x = 990,548.33 × 395,472.65 - Step 4: Simplify right side
717,814.58x = 391,734,766,088.07 - Step 5: Solve for x
x = 391,734,766,088.07/717,814.58 - Step 6: Final answer
x = 545,732.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.