Finding the Fourth Proportional to 689,706.16, 952,231.80 and 472,278.68
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Solution
The fourth proportional to 689,706.16, 952,231.80 and 472,278.68 is: 652,044.02
Step by Step Solution
- Step 1: Write the proportion equation
689,706.16 : 952,231.80 = 472,278.68 : x - Step 2: Convert to fraction form
689,706.16/952,231.80 = 472,278.68/x - Step 3: Cross multiply
689,706.16x = 952,231.80 × 472,278.68 - Step 4: Simplify right side
689,706.16x = 449,718,777,558.02 - Step 5: Solve for x
x = 449,718,777,558.02/689,706.16 - Step 6: Final answer
x = 652,044.02
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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.