Finding the Fourth Proportional to 492,309.79, 679,423.35 and 274,533.19
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Solution
The fourth proportional to 492,309.79, 679,423.35 and 274,533.19 is: 378,875.79
Step by Step Solution
- Step 1: Write the proportion equation
492,309.79 : 679,423.35 = 274,533.19 : x - Step 2: Convert to fraction form
492,309.79/679,423.35 = 274,533.19/x - Step 3: Cross multiply
492,309.79x = 679,423.35 × 274,533.19 - Step 4: Simplify right side
492,309.79x = 186,524,259,635.99 - Step 5: Solve for x
x = 186,524,259,635.99/492,309.79 - Step 6: Final answer
x = 378,875.79
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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.