Finding the Fourth Proportional to 486,937.80, 730,406.70 and 276,985.80
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Solution
The fourth proportional to 486,937.80, 730,406.70 and 276,985.80 is: 415,478.70
Step by Step Solution
- Step 1: Write the proportion equation
486,937.80 : 730,406.70 = 276,985.80 : x - Step 2: Convert to fraction form
486,937.80/730,406.70 = 276,985.80/x - Step 3: Cross multiply
486,937.80x = 730,406.70 × 276,985.80 - Step 4: Simplify right side
486,937.80x = 202,312,284,124.86 - Step 5: Solve for x
x = 202,312,284,124.86/486,937.80 - Step 6: Final answer
x = 415,478.70
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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.