Finding the Fourth Proportional to 1,423,208.14, 1,964,049.37 and 778,639.10
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Solution
The fourth proportional to 1,423,208.14, 1,964,049.37 and 778,639.10 is: 1,074,534.07
Step by Step Solution
- Step 1: Write the proportion equation
1,423,208.14 : 1,964,049.37 = 778,639.10 : x - Step 2: Convert to fraction form
1,423,208.14/1,964,049.37 = 778,639.10/x - Step 3: Cross multiply
1,423,208.14x = 1,964,049.37 × 778,639.10 - Step 4: Simplify right side
1,423,208.14x = 1,529,285,626,425.37 - Step 5: Solve for x
x = 1,529,285,626,425.37/1,423,208.14 - Step 6: Final answer
x = 1,074,534.07
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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.