Finding the Fourth Proportional to 690,124.23, 1,035,290.84 and 216,765.09
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Solution
The fourth proportional to 690,124.23, 1,035,290.84 and 216,765.09 is: 325,180.45
Step by Step Solution
- Step 1: Write the proportion equation
690,124.23 : 1,035,290.84 = 216,765.09 : x - Step 2: Convert to fraction form
690,124.23/1,035,290.84 = 216,765.09/x - Step 3: Cross multiply
690,124.23x = 1,035,290.84 × 216,765.09 - Step 4: Simplify right side
690,124.23x = 224,414,911,024.95 - Step 5: Solve for x
x = 224,414,911,024.95/690,124.23 - Step 6: Final answer
x = 325,180.45
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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.