Finding the Fourth Proportional to 398,348.87, 597,699.84 and 208,764.12
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Solution
The fourth proportional to 398,348.87, 597,699.84 and 208,764.12 is: 313,238.70
Step by Step Solution
- Step 1: Write the proportion equation
398,348.87 : 597,699.84 = 208,764.12 : x - Step 2: Convert to fraction form
398,348.87/597,699.84 = 208,764.12/x - Step 3: Cross multiply
398,348.87x = 597,699.84 × 208,764.12 - Step 4: Simplify right side
398,348.87x = 124,778,281,121.74 - Step 5: Solve for x
x = 124,778,281,121.74/398,348.87 - Step 6: Final answer
x = 313,238.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.