Finding the Fourth Proportional to 1,021,289.13, 1,409,382.99 and 613,397.90
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Solution
The fourth proportional to 1,021,289.13, 1,409,382.99 and 613,397.90 is: 846,491.49
Step by Step Solution
- Step 1: Write the proportion equation
1,021,289.13 : 1,409,382.99 = 613,397.90 : x - Step 2: Convert to fraction form
1,021,289.13/1,409,382.99 = 613,397.90/x - Step 3: Cross multiply
1,021,289.13x = 1,409,382.99 × 613,397.90 - Step 4: Simplify right side
1,021,289.13x = 864,512,559,314.81 - Step 5: Solve for x
x = 864,512,559,314.81/1,021,289.13 - Step 6: Final answer
x = 846,491.49
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.