Finding the Fourth Proportional to 458,327.80, 687,491.70 and 192,017.08
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Solution
The fourth proportional to 458,327.80, 687,491.70 and 192,017.08 is: 288,025.62
Step by Step Solution
- Step 1: Write the proportion equation
458,327.80 : 687,491.70 = 192,017.08 : x - Step 2: Convert to fraction form
458,327.80/687,491.70 = 192,017.08/x - Step 3: Cross multiply
458,327.80x = 687,491.70 × 192,017.08 - Step 4: Simplify right side
458,327.80x = 132,010,148,758.24 - Step 5: Solve for x
x = 132,010,148,758.24/458,327.80 - Step 6: Final answer
x = 288,025.62
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1.5x scale
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.