Finding the Fourth Proportional to 836,999.60, 1,255,660.99 and 357,220.40
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Solution
The fourth proportional to 836,999.60, 1,255,660.99 and 357,220.40 is: 535,899.56
Step by Step Solution
- Step 1: Write the proportion equation
836,999.60 : 1,255,660.99 = 357,220.40 : x - Step 2: Convert to fraction form
836,999.60/1,255,660.99 = 357,220.40/x - Step 3: Cross multiply
836,999.60x = 1,255,660.99 × 357,220.40 - Step 4: Simplify right side
836,999.60x = 448,547,721,112.20 - Step 5: Solve for x
x = 448,547,721,112.20/836,999.60 - Step 6: Final answer
x = 535,899.56
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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.