Finding the Fourth Proportional to 1,963,995.72, 2,710,686.12 and 1,229,290.68
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Solution
The fourth proportional to 1,963,995.72, 2,710,686.12 and 1,229,290.68 is: 1,696,653.99
Step by Step Solution
- Step 1: Write the proportion equation
1,963,995.72 : 2,710,686.12 = 1,229,290.68 : x - Step 2: Convert to fraction form
1,963,995.72/2,710,686.12 = 1,229,290.68/x - Step 3: Cross multiply
1,963,995.72x = 2,710,686.12 × 1,229,290.68 - Step 4: Simplify right side
1,963,995.72x = 3,332,221,183,721.36 - Step 5: Solve for x
x = 3,332,221,183,721.36/1,963,995.72 - Step 6: Final answer
x = 1,696,653.99
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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.