Finding the Fourth Proportional to 627,048.20, 865,297.52 and 355,118.05
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Solution
The fourth proportional to 627,048.20, 865,297.52 and 355,118.05 is: 490,046.49
Step by Step Solution
- Step 1: Write the proportion equation
627,048.20 : 865,297.52 = 355,118.05 : x - Step 2: Convert to fraction form
627,048.20/865,297.52 = 355,118.05/x - Step 3: Cross multiply
627,048.20x = 865,297.52 × 355,118.05 - Step 4: Simplify right side
627,048.20x = 307,282,767,972.24 - Step 5: Solve for x
x = 307,282,767,972.24/627,048.20 - Step 6: Final answer
x = 490,046.49
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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.