Finding the Fourth Proportional to 498,697.56, 688,205.16 and 272,343.06
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Solution
The fourth proportional to 498,697.56, 688,205.16 and 272,343.06 is: 375,834.80
Step by Step Solution
- Step 1: Write the proportion equation
498,697.56 : 688,205.16 = 272,343.06 : x - Step 2: Convert to fraction form
498,697.56/688,205.16 = 272,343.06/x - Step 3: Cross multiply
498,697.56x = 688,205.16 × 272,343.06 - Step 4: Simplify right side
498,697.56x = 187,427,899,182.19 - Step 5: Solve for x
x = 187,427,899,182.19/498,697.56 - Step 6: Final answer
x = 375,834.80
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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.