Finding the Fourth Proportional to 539,010.40, 807,640.80 and 338,972.80
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Solution
The fourth proportional to 539,010.40, 807,640.80 and 338,972.80 is: 507,909.06
Step by Step Solution
- Step 1: Write the proportion equation
539,010.40 : 807,640.80 = 338,972.80 : x - Step 2: Convert to fraction form
539,010.40/807,640.80 = 338,972.80/x - Step 3: Cross multiply
539,010.40x = 807,640.80 × 338,972.80 - Step 4: Simplify right side
539,010.40x = 273,768,263,370.24 - Step 5: Solve for x
x = 273,768,263,370.24/539,010.40 - Step 6: Final answer
x = 507,909.06
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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.