Finding the Fourth Proportional to 938,537.63, 1,296,251.12 and 636,206.75
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Solution
The fourth proportional to 938,537.63, 1,296,251.12 and 636,206.75 is: 878,690.09
Step by Step Solution
- Step 1: Write the proportion equation
938,537.63 : 1,296,251.12 = 636,206.75 : x - Step 2: Convert to fraction form
938,537.63/1,296,251.12 = 636,206.75/x - Step 3: Cross multiply
938,537.63x = 1,296,251.12 × 636,206.75 - Step 4: Simplify right side
938,537.63x = 824,683,707,348.32 - Step 5: Solve for x
x = 824,683,707,348.32/938,537.63 - Step 6: Final answer
x = 878,690.09
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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.