Finding the Fourth Proportional to 1,868,129.99, 2,802,197.70 and 520,296.47
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Solution
The fourth proportional to 1,868,129.99, 2,802,197.70 and 520,296.47 is: 780,445.46
Step by Step Solution
- Step 1: Write the proportion equation
1,868,129.99 : 2,802,197.70 = 520,296.47 : x - Step 2: Convert to fraction form
1,868,129.99/2,802,197.70 = 520,296.47/x - Step 3: Cross multiply
1,868,129.99x = 2,802,197.70 × 520,296.47 - Step 4: Simplify right side
1,868,129.99x = 1,457,973,557,541.13 - Step 5: Solve for x
x = 1,457,973,557,541.13/1,868,129.99 - Step 6: Final answer
x = 780,445.46
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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.