Finding the Fourth Proportional to 458,073.99, 686,778.84 and 307,941.92
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Solution
The fourth proportional to 458,073.99, 686,778.84 and 307,941.92 is: 461,689.59
Step by Step Solution
- Step 1: Write the proportion equation
458,073.99 : 686,778.84 = 307,941.92 : x - Step 2: Convert to fraction form
458,073.99/686,778.84 = 307,941.92/x - Step 3: Cross multiply
458,073.99x = 686,778.84 × 307,941.92 - Step 4: Simplify right side
458,073.99x = 211,487,991,171.08 - Step 5: Solve for x
x = 211,487,991,171.08/458,073.99 - Step 6: Final answer
x = 461,689.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.