Finding the Fourth Proportional to 644,671.36, 888,929.04 and 440,755.36
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Solution
The fourth proportional to 644,671.36, 888,929.04 and 440,755.36 is: 607,751.89
Step by Step Solution
- Step 1: Write the proportion equation
644,671.36 : 888,929.04 = 440,755.36 : x - Step 2: Convert to fraction form
644,671.36/888,929.04 = 440,755.36/x - Step 3: Cross multiply
644,671.36x = 888,929.04 × 440,755.36 - Step 4: Simplify right side
644,671.36x = 391,800,239,039.65 - Step 5: Solve for x
x = 391,800,239,039.65/644,671.36 - Step 6: Final answer
x = 607,751.89
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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.