Finding the Fourth Proportional to 499,072.56, 688,524.84 and 307,753.80
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Solution
The fourth proportional to 499,072.56, 688,524.84 and 307,753.80 is: 424,579.82
Step by Step Solution
- Step 1: Write the proportion equation
499,072.56 : 688,524.84 = 307,753.80 : x - Step 2: Convert to fraction form
499,072.56/688,524.84 = 307,753.80/x - Step 3: Cross multiply
499,072.56x = 688,524.84 × 307,753.80 - Step 4: Simplify right side
499,072.56x = 211,896,135,904.39 - Step 5: Solve for x
x = 211,896,135,904.39/499,072.56 - Step 6: Final answer
x = 424,579.82
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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.