Finding the Fourth Proportional to 1,027,707.12, 1,418,807.28 and 619,911.84
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Solution
The fourth proportional to 1,027,707.12, 1,418,807.28 and 619,911.84 is: 855,823.04
Step by Step Solution
- Step 1: Write the proportion equation
1,027,707.12 : 1,418,807.28 = 619,911.84 : x - Step 2: Convert to fraction form
1,027,707.12/1,418,807.28 = 619,911.84/x - Step 3: Cross multiply
1,027,707.12x = 1,418,807.28 × 619,911.84 - Step 4: Simplify right side
1,027,707.12x = 879,535,431,550.20 - Step 5: Solve for x
x = 879,535,431,550.20/1,027,707.12 - Step 6: Final answer
x = 855,823.04
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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.