Finding the Fourth Proportional to 426,303.40, 638,612.70 and 276,647.80
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Solution
The fourth proportional to 426,303.40, 638,612.70 and 276,647.80 is: 414,425.03
Step by Step Solution
- Step 1: Write the proportion equation
426,303.40 : 638,612.70 = 276,647.80 : x - Step 2: Convert to fraction form
426,303.40/638,612.70 = 276,647.80/x - Step 3: Cross multiply
426,303.40x = 638,612.70 × 276,647.80 - Step 4: Simplify right side
426,303.40x = 176,670,798,507.06 - Step 5: Solve for x
x = 176,670,798,507.06/426,303.40 - Step 6: Final answer
x = 414,425.03
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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.