Finding the Fourth Proportional to 640,682.97, 883,995.60 and 382,509.63
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Solution
The fourth proportional to 640,682.97, 883,995.60 and 382,509.63 is: 527,775.59
Step by Step Solution
- Step 1: Write the proportion equation
640,682.97 : 883,995.60 = 382,509.63 : x - Step 2: Convert to fraction form
640,682.97/883,995.60 = 382,509.63/x - Step 3: Cross multiply
640,682.97x = 883,995.60 × 382,509.63 - Step 4: Simplify right side
640,682.97x = 338,136,829,877.63 - Step 5: Solve for x
x = 338,136,829,877.63/640,682.97 - Step 6: Final answer
x = 527,775.59
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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.