Finding the Fourth Proportional to 687,320.64, 1,030,733.76 and 237,919.68
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Solution
The fourth proportional to 687,320.64, 1,030,733.76 and 237,919.68 is: 356,793.95
Step by Step Solution
- Step 1: Write the proportion equation
687,320.64 : 1,030,733.76 = 237,919.68 : x - Step 2: Convert to fraction form
687,320.64/1,030,733.76 = 237,919.68/x - Step 3: Cross multiply
687,320.64x = 1,030,733.76 × 237,919.68 - Step 4: Simplify right side
687,320.64x = 245,231,846,344.40 - Step 5: Solve for x
x = 245,231,846,344.40/687,320.64 - Step 6: Final answer
x = 356,793.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.