Finding the Fourth Proportional to 948,639.97, 1,309,105.96 and 518,916.34
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Solution
The fourth proportional to 948,639.97, 1,309,105.96 and 518,916.34 is: 716,095.14
Step by Step Solution
- Step 1: Write the proportion equation
948,639.97 : 1,309,105.96 = 518,916.34 : x - Step 2: Convert to fraction form
948,639.97/1,309,105.96 = 518,916.34/x - Step 3: Cross multiply
948,639.97x = 1,309,105.96 × 518,916.34 - Step 4: Simplify right side
948,639.97x = 679,316,473,435.39 - Step 5: Solve for x
x = 679,316,473,435.39/948,639.97 - Step 6: Final answer
x = 716,095.14
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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.