Finding the Fourth Proportional to 518,479.63, 715,544.48 and 285,952.05
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Solution
The fourth proportional to 518,479.63, 715,544.48 and 285,952.05 is: 394,637.32
Step by Step Solution
- Step 1: Write the proportion equation
518,479.63 : 715,544.48 = 285,952.05 : x - Step 2: Convert to fraction form
518,479.63/715,544.48 = 285,952.05/x - Step 3: Cross multiply
518,479.63x = 715,544.48 × 285,952.05 - Step 4: Simplify right side
518,479.63x = 204,611,411,996.17 - Step 5: Solve for x
x = 204,611,411,996.17/518,479.63 - Step 6: Final answer
x = 394,637.32
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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.