Finding the Fourth Proportional to 498,431.08, 687,626.58 and 326,391.40
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Solution
The fourth proportional to 498,431.08, 687,626.58 and 326,391.40 is: 450,283.72
Step by Step Solution
- Step 1: Write the proportion equation
498,431.08 : 687,626.58 = 326,391.40 : x - Step 2: Convert to fraction form
498,431.08/687,626.58 = 326,391.40/x - Step 3: Cross multiply
498,431.08x = 687,626.58 × 326,391.40 - Step 4: Simplify right side
498,431.08x = 224,435,402,123.41 - Step 5: Solve for x
x = 224,435,402,123.41/498,431.08 - Step 6: Final answer
x = 450,283.72
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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.