Finding the Fourth Proportional to 1,321,478.50, 1,823,485.62 and 777,494.65
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Solution
The fourth proportional to 1,321,478.50, 1,823,485.62 and 777,494.65 is: 1,072,851.59
Step by Step Solution
- Step 1: Write the proportion equation
1,321,478.50 : 1,823,485.62 = 777,494.65 : x - Step 2: Convert to fraction form
1,321,478.50/1,823,485.62 = 777,494.65/x - Step 3: Cross multiply
1,321,478.50x = 1,823,485.62 × 777,494.65 - Step 4: Simplify right side
1,321,478.50x = 1,417,750,313,901.93 - Step 5: Solve for x
x = 1,417,750,313,901.93/1,321,478.50 - Step 6: Final answer
x = 1,072,851.59
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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.