Finding the Fourth Proportional to 690,140.96, 1,035,316 and 216,781.84
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Solution
The fourth proportional to 690,140.96, 1,035,316 and 216,781.84 is: 325,205.60
Step by Step Solution
- Step 1: Write the proportion equation
690,140.96 : 1,035,316 = 216,781.84 : x - Step 2: Convert to fraction form
690,140.96/1,035,316 = 216,781.84/x - Step 3: Cross multiply
690,140.96x = 1,035,316 × 216,781.84 - Step 4: Simplify right side
690,140.96x = 224,437,707,461.44 - Step 5: Solve for x
x = 224,437,707,461.44/690,140.96 - Step 6: Final answer
x = 325,205.60
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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.