Finding the Fourth Proportional to 457,652.17, 631,811.34 and 312,675.94
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Solution
The fourth proportional to 457,652.17, 631,811.34 and 312,675.94 is: 431,664.52
Step by Step Solution
- Step 1: Write the proportion equation
457,652.17 : 631,811.34 = 312,675.94 : x - Step 2: Convert to fraction form
457,652.17/631,811.34 = 312,675.94/x - Step 3: Cross multiply
457,652.17x = 631,811.34 × 312,675.94 - Step 4: Simplify right side
457,652.17x = 197,552,204,637.16 - Step 5: Solve for x
x = 197,552,204,637.16/457,652.17 - Step 6: Final answer
x = 431,664.52
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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.