Finding the Fourth Proportional to 818,867.25, 1,130,044.91 and 479,342.79
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Solution
The fourth proportional to 818,867.25, 1,130,044.91 and 479,342.79 is: 661,497.79
Step by Step Solution
- Step 1: Write the proportion equation
818,867.25 : 1,130,044.91 = 479,342.79 : x - Step 2: Convert to fraction form
818,867.25/1,130,044.91 = 479,342.79/x - Step 3: Cross multiply
818,867.25x = 1,130,044.91 × 479,342.79 - Step 4: Simplify right side
818,867.25x = 541,678,877,587.99 - Step 5: Solve for x
x = 541,678,877,587.99/818,867.25 - Step 6: Final answer
x = 661,497.79
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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.