Finding the Fourth Proportional to 552,729.99, 762,762.45 and 311,007.74
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Solution
The fourth proportional to 552,729.99, 762,762.45 and 311,007.74 is: 429,187.90
Step by Step Solution
- Step 1: Write the proportion equation
552,729.99 : 762,762.45 = 311,007.74 : x - Step 2: Convert to fraction form
552,729.99/762,762.45 = 311,007.74/x - Step 3: Cross multiply
552,729.99x = 762,762.45 × 311,007.74 - Step 4: Simplify right side
552,729.99x = 237,225,023,083.83 - Step 5: Solve for x
x = 237,225,023,083.83/552,729.99 - Step 6: Final answer
x = 429,187.90
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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.