Finding the Fourth Proportional to 753,209.70, 1,129,812.31 and 619,812.42
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Solution
The fourth proportional to 753,209.70, 1,129,812.31 and 619,812.42 is: 929,716.79
Step by Step Solution
- Step 1: Write the proportion equation
753,209.70 : 1,129,812.31 = 619,812.42 : x - Step 2: Convert to fraction form
753,209.70/1,129,812.31 = 619,812.42/x - Step 3: Cross multiply
753,209.70x = 1,129,812.31 × 619,812.42 - Step 4: Simplify right side
753,209.70x = 700,271,702,006.89 - Step 5: Solve for x
x = 700,271,702,006.89/753,209.70 - Step 6: Final answer
x = 929,716.79
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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.