Finding the Fourth Proportional to 982,871.80, 1,474,307.70 and 318,023.80
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Solution
The fourth proportional to 982,871.80, 1,474,307.70 and 318,023.80 is: 477,035.70
Step by Step Solution
- Step 1: Write the proportion equation
982,871.80 : 1,474,307.70 = 318,023.80 : x - Step 2: Convert to fraction form
982,871.80/1,474,307.70 = 318,023.80/x - Step 3: Cross multiply
982,871.80x = 1,474,307.70 × 318,023.80 - Step 4: Simplify right side
982,871.80x = 468,864,937,123.26 - Step 5: Solve for x
x = 468,864,937,123.26/982,871.80 - Step 6: Final answer
x = 477,035.70
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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.