Finding the Fourth Proportional to 1,399,328.78, 2,099,047.80 and 440,438.60
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Solution
The fourth proportional to 1,399,328.78, 2,099,047.80 and 440,438.60 is: 660,675.09
Step by Step Solution
- Step 1: Write the proportion equation
1,399,328.78 : 2,099,047.80 = 440,438.60 : x - Step 2: Convert to fraction form
1,399,328.78/2,099,047.80 = 440,438.60/x - Step 3: Cross multiply
1,399,328.78x = 2,099,047.80 × 440,438.60 - Step 4: Simplify right side
1,399,328.78x = 924,501,674,365.08 - Step 5: Solve for x
x = 924,501,674,365.08/1,399,328.78 - Step 6: Final answer
x = 660,675.09
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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.