Finding the Fourth Proportional to 485,869.05, 728,814.51 and 201,602.79
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Solution
The fourth proportional to 485,869.05, 728,814.51 and 201,602.79 is: 302,408.72
Step by Step Solution
- Step 1: Write the proportion equation
485,869.05 : 728,814.51 = 201,602.79 : x - Step 2: Convert to fraction form
485,869.05/728,814.51 = 201,602.79/x - Step 3: Cross multiply
485,869.05x = 728,814.51 × 201,602.79 - Step 4: Simplify right side
485,869.05x = 146,931,038,608.48 - Step 5: Solve for x
x = 146,931,038,608.48/485,869.05 - Step 6: Final answer
x = 302,408.72
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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.