Finding the Fourth Proportional to 687,856.88, 1,026,199.68 and 650,654.96
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Solution
The fourth proportional to 687,856.88, 1,026,199.68 and 650,654.96 is: 970,698.89
Step by Step Solution
- Step 1: Write the proportion equation
687,856.88 : 1,026,199.68 = 650,654.96 : x - Step 2: Convert to fraction form
687,856.88/1,026,199.68 = 650,654.96/x - Step 3: Cross multiply
687,856.88x = 1,026,199.68 × 650,654.96 - Step 4: Simplify right side
687,856.88x = 667,701,911,742.41 - Step 5: Solve for x
x = 667,701,911,742.41/687,856.88 - Step 6: Final answer
x = 970,698.89
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.