Finding the Fourth Proportional to 657,478.62, 986,246.01 and 258,205.93
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Solution
The fourth proportional to 657,478.62, 986,246.01 and 258,205.93 is: 387,319.92
Step by Step Solution
- Step 1: Write the proportion equation
657,478.62 : 986,246.01 = 258,205.93 : x - Step 2: Convert to fraction form
657,478.62/986,246.01 = 258,205.93/x - Step 3: Cross multiply
657,478.62x = 986,246.01 × 258,205.93 - Step 4: Simplify right side
657,478.62x = 254,654,565,755.22 - Step 5: Solve for x
x = 254,654,565,755.22/657,478.62 - Step 6: Final answer
x = 387,319.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.