Finding the Fourth Proportional to 640,630.65, 884,045.64 and 382,550.99
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Solution
The fourth proportional to 640,630.65, 884,045.64 and 382,550.99 is: 527,905.63
Step by Step Solution
- Step 1: Write the proportion equation
640,630.65 : 884,045.64 = 382,550.99 : x - Step 2: Convert to fraction form
640,630.65/884,045.64 = 382,550.99/x - Step 3: Cross multiply
640,630.65x = 884,045.64 × 382,550.99 - Step 4: Simplify right side
640,630.65x = 338,192,531,801.52 - Step 5: Solve for x
x = 338,192,531,801.52/640,630.65 - Step 6: Final answer
x = 527,905.63
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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.