Finding the Fourth Proportional to 690,657.96, 1,035,985.34 and 217,384.68
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Solution
The fourth proportional to 690,657.96, 1,035,985.34 and 217,384.68 is: 326,076.52
Step by Step Solution
- Step 1: Write the proportion equation
690,657.96 : 1,035,985.34 = 217,384.68 : x - Step 2: Convert to fraction form
690,657.96/1,035,985.34 = 217,384.68/x - Step 3: Cross multiply
690,657.96x = 1,035,985.34 × 217,384.68 - Step 4: Simplify right side
690,657.96x = 225,207,341,620.59 - Step 5: Solve for x
x = 225,207,341,620.59/690,657.96 - Step 6: Final answer
x = 326,076.52
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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.