Finding the Fourth Proportional to 690,281.96, 1,035,421.98 and 217,008.68
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Solution
The fourth proportional to 690,281.96, 1,035,421.98 and 217,008.68 is: 325,512.72
Step by Step Solution
- Step 1: Write the proportion equation
690,281.96 : 1,035,421.98 = 217,008.68 : x - Step 2: Convert to fraction form
690,281.96/1,035,421.98 = 217,008.68/x - Step 3: Cross multiply
690,281.96x = 1,035,421.98 × 217,008.68 - Step 4: Simplify right side
690,281.96x = 224,695,557,122.79 - Step 5: Solve for x
x = 224,695,557,122.79/690,281.96 - Step 6: Final answer
x = 325,512.72
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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.