Finding the Fourth Proportional to 552,731.99, 762,765.21 and 311,009.74
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Solution
The fourth proportional to 552,731.99, 762,765.21 and 311,009.74 is: 429,190.66
Step by Step Solution
- Step 1: Write the proportion equation
552,731.99 : 762,765.21 = 311,009.74 : x - Step 2: Convert to fraction form
552,731.99/762,765.21 = 311,009.74/x - Step 3: Cross multiply
552,731.99x = 762,765.21 × 311,009.74 - Step 4: Simplify right side
552,731.99x = 237,227,409,643.15 - Step 5: Solve for x
x = 237,227,409,643.15/552,731.99 - Step 6: Final answer
x = 429,190.66
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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.