Finding the Fourth Proportional to 777,802.75, 1,073,368.52 and 420,106.75
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Solution
The fourth proportional to 777,802.75, 1,073,368.52 and 420,106.75 is: 579,747.71
Step by Step Solution
- Step 1: Write the proportion equation
777,802.75 : 1,073,368.52 = 420,106.75 : x - Step 2: Convert to fraction form
777,802.75/1,073,368.52 = 420,106.75/x - Step 3: Cross multiply
777,802.75x = 1,073,368.52 × 420,106.75 - Step 4: Simplify right side
777,802.75x = 450,929,360,489.51 - Step 5: Solve for x
x = 450,929,360,489.51/777,802.75 - Step 6: Final answer
x = 579,747.71
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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.