Finding the Fourth Proportional to 1,989,811.24, 2,985,347.81 and 710,391.26
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Solution
The fourth proportional to 1,989,811.24, 2,985,347.81 and 710,391.26 is: 1,065,812.15
Step by Step Solution
- Step 1: Write the proportion equation
1,989,811.24 : 2,985,347.81 = 710,391.26 : x - Step 2: Convert to fraction form
1,989,811.24/2,985,347.81 = 710,391.26/x - Step 3: Cross multiply
1,989,811.24x = 2,985,347.81 × 710,391.26 - Step 4: Simplify right side
1,989,811.24x = 2,120,765,001,523.49 - Step 5: Solve for x
x = 2,120,765,001,523.49/1,989,811.24 - Step 6: Final answer
x = 1,065,812.15
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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.