Finding the Fourth Proportional to 938,536.88, 1,296,250.09 and 636,206.00
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Solution
The fourth proportional to 938,536.88, 1,296,250.09 and 636,206.00 is: 878,689.05
Step by Step Solution
- Step 1: Write the proportion equation
938,536.88 : 1,296,250.09 = 636,206.00 : x - Step 2: Convert to fraction form
938,536.88/1,296,250.09 = 636,206.00/x - Step 3: Cross multiply
938,536.88x = 1,296,250.09 × 636,206.00 - Step 4: Simplify right side
938,536.88x = 824,682,076,686.78 - Step 5: Solve for x
x = 824,682,076,686.78/938,536.88 - Step 6: Final answer
x = 878,689.05
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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.