Finding the Fourth Proportional to 498,461.28, 687,888.36 and 272,108.40
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Solution
The fourth proportional to 498,461.28, 687,888.36 and 272,108.40 is: 375,516.03
Step by Step Solution
- Step 1: Write the proportion equation
498,461.28 : 687,888.36 = 272,108.40 : x - Step 2: Convert to fraction form
498,461.28/687,888.36 = 272,108.40/x - Step 3: Cross multiply
498,461.28x = 687,888.36 × 272,108.40 - Step 4: Simplify right side
498,461.28x = 187,180,201,018.22 - Step 5: Solve for x
x = 187,180,201,018.22/498,461.28 - Step 6: Final answer
x = 375,516.03
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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.