Finding the Fourth Proportional to 1,397,512.18, 1,928,521.80 and 785,690.63
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Solution
The fourth proportional to 1,397,512.18, 1,928,521.80 and 785,690.63 is: 1,084,227.76
Step by Step Solution
- Step 1: Write the proportion equation
1,397,512.18 : 1,928,521.80 = 785,690.63 : x - Step 2: Convert to fraction form
1,397,512.18/1,928,521.80 = 785,690.63/x - Step 3: Cross multiply
1,397,512.18x = 1,928,521.80 × 785,690.63 - Step 4: Simplify right side
1,397,512.18x = 1,515,221,498,368.13 - Step 5: Solve for x
x = 1,515,221,498,368.13/1,397,512.18 - Step 6: Final answer
x = 1,084,227.76
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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.