Finding the Fourth Proportional to 539,662.03, 744,821.12 and 313,438.75
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Solution
The fourth proportional to 539,662.03, 744,821.12 and 313,438.75 is: 432,596.31
Step by Step Solution
- Step 1: Write the proportion equation
539,662.03 : 744,821.12 = 313,438.75 : x - Step 2: Convert to fraction form
539,662.03/744,821.12 = 313,438.75/x - Step 3: Cross multiply
539,662.03x = 744,821.12 × 313,438.75 - Step 4: Simplify right side
539,662.03x = 233,455,800,826.40 - Step 5: Solve for x
x = 233,455,800,826.40/539,662.03 - Step 6: Final answer
x = 432,596.31
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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.