Finding the Fourth Proportional to 426,844.80, 638,884.80 and 302,428.80
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Solution
The fourth proportional to 426,844.80, 638,884.80 and 302,428.80 is: 452,663.74
Step by Step Solution
- Step 1: Write the proportion equation
426,844.80 : 638,884.80 = 302,428.80 : x - Step 2: Convert to fraction form
426,844.80/638,884.80 = 302,428.80/x - Step 3: Cross multiply
426,844.80x = 638,884.80 × 302,428.80 - Step 4: Simplify right side
426,844.80x = 193,217,163,402.24 - Step 5: Solve for x
x = 193,217,163,402.24/426,844.80 - Step 6: Final answer
x = 452,663.74
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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.