Finding the Fourth Proportional to 619,776.63, 855,334.09 and 344,148.70
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Solution
The fourth proportional to 619,776.63, 855,334.09 and 344,148.70 is: 474,948.72
Step by Step Solution
- Step 1: Write the proportion equation
619,776.63 : 855,334.09 = 344,148.70 : x - Step 2: Convert to fraction form
619,776.63/855,334.09 = 344,148.70/x - Step 3: Cross multiply
619,776.63x = 855,334.09 × 344,148.70 - Step 4: Simplify right side
619,776.63x = 294,362,114,278.81 - Step 5: Solve for x
x = 294,362,114,278.81/619,776.63 - Step 6: Final answer
x = 474,948.72
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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.