Finding the Fourth Proportional to 498,140.16, 687,453.92 and 283,318.08
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Solution
The fourth proportional to 498,140.16, 687,453.92 and 283,318.08 is: 390,990.61
Step by Step Solution
- Step 1: Write the proportion equation
498,140.16 : 687,453.92 = 283,318.08 : x - Step 2: Convert to fraction form
498,140.16/687,453.92 = 283,318.08/x - Step 3: Cross multiply
498,140.16x = 687,453.92 × 283,318.08 - Step 4: Simplify right side
498,140.16x = 194,768,124,702.87 - Step 5: Solve for x
x = 194,768,124,702.87/498,140.16 - Step 6: Final answer
x = 390,990.61
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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.