Finding the Fourth Proportional to 457,239.24, 631,155.78 and 372,208.68
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Solution
The fourth proportional to 457,239.24, 631,155.78 and 372,208.68 is: 513,782.81
Step by Step Solution
- Step 1: Write the proportion equation
457,239.24 : 631,155.78 = 372,208.68 : x - Step 2: Convert to fraction form
457,239.24/631,155.78 = 372,208.68/x - Step 3: Cross multiply
457,239.24x = 631,155.78 × 372,208.68 - Step 4: Simplify right side
457,239.24x = 234,921,659,748.17 - Step 5: Solve for x
x = 234,921,659,748.17/457,239.24 - Step 6: Final answer
x = 513,782.81
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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.