Finding the Fourth Proportional to 1,393,839.36, 2,090,509.76 and 369,176.80
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Solution
The fourth proportional to 1,393,839.36, 2,090,509.76 and 369,176.80 is: 553,699.17
Step by Step Solution
- Step 1: Write the proportion equation
1,393,839.36 : 2,090,509.76 = 369,176.80 : x - Step 2: Convert to fraction form
1,393,839.36/2,090,509.76 = 369,176.80/x - Step 3: Cross multiply
1,393,839.36x = 2,090,509.76 × 369,176.80 - Step 4: Simplify right side
1,393,839.36x = 771,767,703,565.57 - Step 5: Solve for x
x = 771,767,703,565.57/1,393,839.36 - Step 6: Final answer
x = 553,699.17
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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.