Finding the Fourth Proportional to 498,047.68, 687,277.76 and 283,158.08
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Solution
The fourth proportional to 498,047.68, 687,277.76 and 283,158.08 is: 390,742.21
Step by Step Solution
- Step 1: Write the proportion equation
498,047.68 : 687,277.76 = 283,158.08 : x - Step 2: Convert to fraction form
498,047.68/687,277.76 = 283,158.08/x - Step 3: Cross multiply
498,047.68x = 687,277.76 × 283,158.08 - Step 4: Simplify right side
498,047.68x = 194,608,250,948.30 - Step 5: Solve for x
x = 194,608,250,948.30/498,047.68 - Step 6: Final answer
x = 390,742.21
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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.