Finding the Fourth Proportional to 1,690,659.80, 2,536,378.49 and 553,458.68
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Solution
The fourth proportional to 1,690,659.80, 2,536,378.49 and 553,458.68 is: 830,315.29
Step by Step Solution
- Step 1: Write the proportion equation
1,690,659.80 : 2,536,378.49 = 553,458.68 : x - Step 2: Convert to fraction form
1,690,659.80/2,536,378.49 = 553,458.68/x - Step 3: Cross multiply
1,690,659.80x = 2,536,378.49 × 553,458.68 - Step 4: Simplify right side
1,690,659.80x = 1,403,780,679,757.55 - Step 5: Solve for x
x = 1,403,780,679,757.55/1,690,659.80 - Step 6: Final answer
x = 830,315.29
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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.