Finding the Fourth Proportional to 1,698,609.84, 2,545,115.40 and 986,639.28
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Solution
The fourth proportional to 1,698,609.84, 2,545,115.40 and 986,639.28 is: 1,478,332.91
Step by Step Solution
- Step 1: Write the proportion equation
1,698,609.84 : 2,545,115.40 = 986,639.28 : x - Step 2: Convert to fraction form
1,698,609.84/2,545,115.40 = 986,639.28/x - Step 3: Cross multiply
1,698,609.84x = 2,545,115.40 × 986,639.28 - Step 4: Simplify right side
1,698,609.84x = 2,511,110,825,772.91 - Step 5: Solve for x
x = 2,511,110,825,772.91/1,698,609.84 - Step 6: Final answer
x = 1,478,332.91
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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.