Finding the Fourth Proportional to 655,909.12, 905,209.68 and 369,485.44
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Solution
The fourth proportional to 655,909.12, 905,209.68 and 369,485.44 is: 509,920.94
Step by Step Solution
- Step 1: Write the proportion equation
655,909.12 : 905,209.68 = 369,485.44 : x - Step 2: Convert to fraction form
655,909.12/905,209.68 = 369,485.44/x - Step 3: Cross multiply
655,909.12x = 905,209.68 × 369,485.44 - Step 4: Simplify right side
655,909.12x = 334,461,796,907.06 - Step 5: Solve for x
x = 334,461,796,907.06/655,909.12 - Step 6: Final answer
x = 509,920.94
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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.