Finding the Fourth Proportional to 909,694.38, 1,363,434.68 and 643,531.62
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Solution
The fourth proportional to 909,694.38, 1,363,434.68 and 643,531.62 is: 964,514.40
Step by Step Solution
- Step 1: Write the proportion equation
909,694.38 : 1,363,434.68 = 643,531.62 : x - Step 2: Convert to fraction form
909,694.38/1,363,434.68 = 643,531.62/x - Step 3: Cross multiply
909,694.38x = 1,363,434.68 × 643,531.62 - Step 4: Simplify right side
909,694.38x = 877,413,328,384.58 - Step 5: Solve for x
x = 877,413,328,384.58/909,694.38 - Step 6: Final answer
x = 964,514.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.