Finding the Fourth Proportional to 609,475.19, 910,506.45 and 394,491.70
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Solution
The fourth proportional to 609,475.19, 910,506.45 and 394,491.70 is: 589,338.58
Step by Step Solution
- Step 1: Write the proportion equation
609,475.19 : 910,506.45 = 394,491.70 : x - Step 2: Convert to fraction form
609,475.19/910,506.45 = 394,491.70/x - Step 3: Cross multiply
609,475.19x = 910,506.45 × 394,491.70 - Step 4: Simplify right side
609,475.19x = 359,187,239,938.94 - Step 5: Solve for x
x = 359,187,239,938.94/609,475.19 - Step 6: Final answer
x = 589,338.58
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.