Finding the Fourth Proportional to 1,399,236.06, 1,930,923.14 and 787,388.49
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Solution
The fourth proportional to 1,399,236.06, 1,930,923.14 and 787,388.49 is: 1,086,583.39
Step by Step Solution
- Step 1: Write the proportion equation
1,399,236.06 : 1,930,923.14 = 787,388.49 : x - Step 2: Convert to fraction form
1,399,236.06/1,930,923.14 = 787,388.49/x - Step 3: Cross multiply
1,399,236.06x = 1,930,923.14 × 787,388.49 - Step 4: Simplify right side
1,399,236.06x = 1,520,386,657,479.13 - Step 5: Solve for x
x = 1,520,386,657,479.13/1,399,236.06 - Step 6: Final answer
x = 1,086,583.39
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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.