Finding the Fourth Proportional to 935,275.86, 1,290,680.11 and 505,555.99
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Solution
The fourth proportional to 935,275.86, 1,290,680.11 and 505,555.99 is: 697,666.95
Step by Step Solution
- Step 1: Write the proportion equation
935,275.86 : 1,290,680.11 = 505,555.99 : x - Step 2: Convert to fraction form
935,275.86/1,290,680.11 = 505,555.99/x - Step 3: Cross multiply
935,275.86x = 1,290,680.11 × 505,555.99 - Step 4: Simplify right side
935,275.86x = 652,511,057,033.53 - Step 5: Solve for x
x = 652,511,057,033.53/935,275.86 - Step 6: Final answer
x = 697,666.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.