Finding the Fourth Proportional to 687,511.86, 1,031,295.75 and 327,497.64
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Solution
The fourth proportional to 687,511.86, 1,031,295.75 and 327,497.64 is: 491,259.78
Step by Step Solution
- Step 1: Write the proportion equation
687,511.86 : 1,031,295.75 = 327,497.64 : x - Step 2: Convert to fraction form
687,511.86/1,031,295.75 = 327,497.64/x - Step 3: Cross multiply
687,511.86x = 1,031,295.75 × 327,497.64 - Step 4: Simplify right side
687,511.86x = 337,746,924,267.03 - Step 5: Solve for x
x = 337,746,924,267.03/687,511.86 - Step 6: Final answer
x = 491,259.78
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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.