Finding the Fourth Proportional to 787,688.10, 1,180,657.35 and 432,956.70
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Solution
The fourth proportional to 787,688.10, 1,180,657.35 and 432,956.70 is: 648,954.21
Step by Step Solution
- Step 1: Write the proportion equation
787,688.10 : 1,180,657.35 = 432,956.70 : x - Step 2: Convert to fraction form
787,688.10/1,180,657.35 = 432,956.70/x - Step 3: Cross multiply
787,688.10x = 1,180,657.35 × 432,956.70 - Step 4: Simplify right side
787,688.10x = 511,173,510,086.75 - Step 5: Solve for x
x = 511,173,510,086.75/787,688.10 - Step 6: Final answer
x = 648,954.21
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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.