Finding the Fourth Proportional to 1,308,788.28, 1,805,521.59 and 764,946.99
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Solution
The fourth proportional to 1,308,788.28, 1,805,521.59 and 764,946.99 is: 1,055,272.52
Step by Step Solution
- Step 1: Write the proportion equation
1,308,788.28 : 1,805,521.59 = 764,946.99 : x - Step 2: Convert to fraction form
1,308,788.28/1,805,521.59 = 764,946.99/x - Step 3: Cross multiply
1,308,788.28x = 1,805,521.59 × 764,946.99 - Step 4: Simplify right side
1,308,788.28x = 1,381,128,305,650.51 - Step 5: Solve for x
x = 1,381,128,305,650.51/1,308,788.28 - Step 6: Final answer
x = 1,055,272.52
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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.