Finding the Fourth Proportional to 409,537.80, 614,306.70 and 386,209.80
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Solution
The fourth proportional to 409,537.80, 614,306.70 and 386,209.80 is: 579,314.70
Step by Step Solution
- Step 1: Write the proportion equation
409,537.80 : 614,306.70 = 386,209.80 : x - Step 2: Convert to fraction form
409,537.80/614,306.70 = 386,209.80/x - Step 3: Cross multiply
409,537.80x = 614,306.70 × 386,209.80 - Step 4: Simplify right side
409,537.80x = 237,251,267,745.66 - Step 5: Solve for x
x = 237,251,267,745.66/409,537.80 - Step 6: Final answer
x = 579,314.70
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1.5x scale
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.