Finding the Fourth Proportional to 619,610.76, 855,063.28 and 347,641.12
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Solution
The fourth proportional to 619,610.76, 855,063.28 and 347,641.12 is: 479,744.99
Step by Step Solution
- Step 1: Write the proportion equation
619,610.76 : 855,063.28 = 347,641.12 : x - Step 2: Convert to fraction form
619,610.76/855,063.28 = 347,641.12/x - Step 3: Cross multiply
619,610.76x = 855,063.28 × 347,641.12 - Step 4: Simplify right side
619,610.76x = 297,255,156,330.07 - Step 5: Solve for x
x = 297,255,156,330.07/619,610.76 - Step 6: Final answer
x = 479,744.99
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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.