Finding the Fourth Proportional to 1,918,389.99, 2,646,749.45 and 1,367,192.52
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Solution
The fourth proportional to 1,918,389.99, 2,646,749.45 and 1,367,192.52 is: 1,886,277.59
Step by Step Solution
- Step 1: Write the proportion equation
1,918,389.99 : 2,646,749.45 = 1,367,192.52 : x - Step 2: Convert to fraction form
1,918,389.99/2,646,749.45 = 1,367,192.52/x - Step 3: Cross multiply
1,918,389.99x = 2,646,749.45 × 1,367,192.52 - Step 4: Simplify right side
1,918,389.99x = 3,618,616,037,120.37 - Step 5: Solve for x
x = 3,618,616,037,120.37/1,918,389.99 - Step 6: Final answer
x = 1,886,277.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.