Finding the Fourth Proportional to 813,802.44, 1,122,824.79 and 486,983.91
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Solution
The fourth proportional to 813,802.44, 1,122,824.79 and 486,983.91 is: 671,904.60
Step by Step Solution
- Step 1: Write the proportion equation
813,802.44 : 1,122,824.79 = 486,983.91 : x - Step 2: Convert to fraction form
813,802.44/1,122,824.79 = 486,983.91/x - Step 3: Cross multiply
813,802.44x = 1,122,824.79 × 486,983.91 - Step 4: Simplify right side
813,802.44x = 546,797,606,479.13 - Step 5: Solve for x
x = 546,797,606,479.13/813,802.44 - Step 6: Final answer
x = 671,904.60
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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.