Finding the Fourth Proportional to 426,109.48, 639,164.95 and 341,259.99
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Solution
The fourth proportional to 426,109.48, 639,164.95 and 341,259.99 is: 511,890.57
Step by Step Solution
- Step 1: Write the proportion equation
426,109.48 : 639,164.95 = 341,259.99 : x - Step 2: Convert to fraction form
426,109.48/639,164.95 = 341,259.99/x - Step 3: Cross multiply
426,109.48x = 639,164.95 × 341,259.99 - Step 4: Simplify right side
426,109.48x = 218,121,424,445.35 - Step 5: Solve for x
x = 218,121,424,445.35/426,109.48 - Step 6: Final answer
x = 511,890.57
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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.