Finding the Fourth Proportional to 828,511.08, 1,143,212.04 and 465,913.38
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Solution
The fourth proportional to 828,511.08, 1,143,212.04 and 465,913.38 is: 642,885.53
Step by Step Solution
- Step 1: Write the proportion equation
828,511.08 : 1,143,212.04 = 465,913.38 : x - Step 2: Convert to fraction form
828,511.08/1,143,212.04 = 465,913.38/x - Step 3: Cross multiply
828,511.08x = 1,143,212.04 × 465,913.38 - Step 4: Simplify right side
828,511.08x = 532,637,785,613.10 - Step 5: Solve for x
x = 532,637,785,613.10/828,511.08 - Step 6: Final answer
x = 642,885.53
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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.