Finding the Fourth Proportional to 1,239,927.32, 1,859,890.91 and 398,544.68
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Solution
The fourth proportional to 1,239,927.32, 1,859,890.91 and 398,544.68 is: 597,816.99
Step by Step Solution
- Step 1: Write the proportion equation
1,239,927.32 : 1,859,890.91 = 398,544.68 : x - Step 2: Convert to fraction form
1,239,927.32/1,859,890.91 = 398,544.68/x - Step 3: Cross multiply
1,239,927.32x = 1,859,890.91 × 398,544.68 - Step 4: Simplify right side
1,239,927.32x = 741,249,616,268.68 - Step 5: Solve for x
x = 741,249,616,268.68/1,239,927.32 - Step 6: Final answer
x = 597,816.99
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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.