Finding the Fourth Proportional to 938,534.50, 1,296,246.81 and 636,203.62
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Solution
The fourth proportional to 938,534.50, 1,296,246.81 and 636,203.62 is: 878,685.77
Step by Step Solution
- Step 1: Write the proportion equation
938,534.50 : 1,296,246.81 = 636,203.62 : x - Step 2: Convert to fraction form
938,534.50/1,296,246.81 = 636,203.62/x - Step 3: Cross multiply
938,534.50x = 1,296,246.81 × 636,203.62 - Step 4: Simplify right side
938,534.50x = 824,676,912,935.45 - Step 5: Solve for x
x = 824,676,912,935.45/938,534.50 - Step 6: Final answer
x = 878,685.77
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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.