Finding the Fourth Proportional to 1,292,057.66, 1,937,938.86 and 345,502.19
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Solution
The fourth proportional to 1,292,057.66, 1,937,938.86 and 345,502.19 is: 518,213.80
Step by Step Solution
- Step 1: Write the proportion equation
1,292,057.66 : 1,937,938.86 = 345,502.19 : x - Step 2: Convert to fraction form
1,292,057.66/1,937,938.86 = 345,502.19/x - Step 3: Cross multiply
1,292,057.66x = 1,937,938.86 × 345,502.19 - Step 4: Simplify right side
1,292,057.66x = 669,562,110,526.41 - Step 5: Solve for x
x = 669,562,110,526.41/1,292,057.66 - Step 6: Final answer
x = 518,213.80
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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.