Finding the Fourth Proportional to 545,693.15, 753,064.38 and 313,157.99
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Solution
The fourth proportional to 545,693.15, 753,064.38 and 313,157.99 is: 432,162.52
Step by Step Solution
- Step 1: Write the proportion equation
545,693.15 : 753,064.38 = 313,157.99 : x - Step 2: Convert to fraction form
545,693.15/753,064.38 = 313,157.99/x - Step 3: Cross multiply
545,693.15x = 753,064.38 × 313,157.99 - Step 4: Simplify right side
545,693.15x = 235,828,129,464.06 - Step 5: Solve for x
x = 235,828,129,464.06/545,693.15 - Step 6: Final answer
x = 432,162.52
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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.