Finding the Fourth Proportional to 683,461.29, 943,205.21 and 393,073.05
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Solution
The fourth proportional to 683,461.29, 943,205.21 and 393,073.05 is: 542,457.28
Step by Step Solution
- Step 1: Write the proportion equation
683,461.29 : 943,205.21 = 393,073.05 : x - Step 2: Convert to fraction form
683,461.29/943,205.21 = 393,073.05/x - Step 3: Cross multiply
683,461.29x = 943,205.21 × 393,073.05 - Step 4: Simplify right side
683,461.29x = 370,748,548,670.59 - Step 5: Solve for x
x = 370,748,548,670.59/683,461.29 - Step 6: Final answer
x = 542,457.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.