Finding the Fourth Proportional to 1,297,981.36, 1,947,156.57 and 399,497.97
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Solution
The fourth proportional to 1,297,981.36, 1,947,156.57 and 399,497.97 is: 599,303.76
Step by Step Solution
- Step 1: Write the proportion equation
1,297,981.36 : 1,947,156.57 = 399,497.97 : x - Step 2: Convert to fraction form
1,297,981.36/1,947,156.57 = 399,497.97/x - Step 3: Cross multiply
1,297,981.36x = 1,947,156.57 × 399,497.97 - Step 4: Simplify right side
1,297,981.36x = 777,885,104,289.00 - Step 5: Solve for x
x = 777,885,104,289.00/1,297,981.36 - Step 6: Final answer
x = 599,303.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.