Finding the Fourth Proportional to 828,963.05, 1,143,968.73 and 461,432.20
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Solution
The fourth proportional to 828,963.05, 1,143,968.73 and 461,432.20 is: 636,776.28
Step by Step Solution
- Step 1: Write the proportion equation
828,963.05 : 1,143,968.73 = 461,432.20 : x - Step 2: Convert to fraction form
828,963.05/1,143,968.73 = 461,432.20/x - Step 3: Cross multiply
828,963.05x = 1,143,968.73 × 461,432.20 - Step 4: Simplify right side
828,963.05x = 527,864,006,442.23 - Step 5: Solve for x
x = 527,864,006,442.23/828,963.05 - Step 6: Final answer
x = 636,776.28
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1.5x scale
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.