Finding the Fourth Proportional to 719,225.76, 1,073,369.78 and 639,511.68
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Solution
The fourth proportional to 719,225.76, 1,073,369.78 and 639,511.68 is: 954,404.79
Step by Step Solution
- Step 1: Write the proportion equation
719,225.76 : 1,073,369.78 = 639,511.68 : x - Step 2: Convert to fraction form
719,225.76/1,073,369.78 = 639,511.68/x - Step 3: Cross multiply
719,225.76x = 1,073,369.78 × 639,511.68 - Step 4: Simplify right side
719,225.76x = 686,432,511,269.03 - Step 5: Solve for x
x = 686,432,511,269.03/719,225.76 - Step 6: Final answer
x = 954,404.79
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.