Finding the Fourth Proportional to 717,456.58, 990,052.70 and 445,518.65
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Solution
The fourth proportional to 717,456.58, 990,052.70 and 445,518.65 is: 614,792.53
Step by Step Solution
- Step 1: Write the proportion equation
717,456.58 : 990,052.70 = 445,518.65 : x - Step 2: Convert to fraction form
717,456.58/990,052.70 = 445,518.65/x - Step 3: Cross multiply
717,456.58x = 990,052.70 × 445,518.65 - Step 4: Simplify right side
717,456.58x = 441,086,945,921.78 - Step 5: Solve for x
x = 441,086,945,921.78/717,456.58 - Step 6: Final answer
x = 614,792.53
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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.