Finding the Fourth Proportional to 691,423.20, 1,037,134.80 and 551,455.20
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Solution
The fourth proportional to 691,423.20, 1,037,134.80 and 551,455.20 is: 827,182.80
Step by Step Solution
- Step 1: Write the proportion equation
691,423.20 : 1,037,134.80 = 551,455.20 : x - Step 2: Convert to fraction form
691,423.20/1,037,134.80 = 551,455.20/x - Step 3: Cross multiply
691,423.20x = 1,037,134.80 × 551,455.20 - Step 4: Simplify right side
691,423.20x = 571,933,378,560.96 - Step 5: Solve for x
x = 571,933,378,560.96/691,423.20 - Step 6: Final answer
x = 827,182.80
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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.