Finding the Fourth Proportional to 391,506.87, 587,347.79 and 125,283.36
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Solution
The fourth proportional to 391,506.87, 587,347.79 and 125,283.36 is: 187,953.03
Step by Step Solution
- Step 1: Write the proportion equation
391,506.87 : 587,347.79 = 125,283.36 : x - Step 2: Convert to fraction form
391,506.87/587,347.79 = 125,283.36/x - Step 3: Cross multiply
391,506.87x = 587,347.79 × 125,283.36 - Step 4: Simplify right side
391,506.87x = 73,584,903,993.36 - Step 5: Solve for x
x = 73,584,903,993.36/391,506.87 - Step 6: Final answer
x = 187,953.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.