Finding the Fourth Proportional to 1,015,965.30, 1,402,048.24 and 557,121.62
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Solution
The fourth proportional to 1,015,965.30, 1,402,048.24 and 557,121.62 is: 768,836.68
Step by Step Solution
- Step 1: Write the proportion equation
1,015,965.30 : 1,402,048.24 = 557,121.62 : x - Step 2: Convert to fraction form
1,015,965.30/1,402,048.24 = 557,121.62/x - Step 3: Cross multiply
1,015,965.30x = 1,402,048.24 × 557,121.62 - Step 4: Simplify right side
1,015,965.30x = 781,111,386,786.95 - Step 5: Solve for x
x = 781,111,386,786.95/1,015,965.30 - Step 6: Final answer
x = 768,836.68
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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.