Finding the Fourth Proportional to 1,555,320.63, 2,146,342.47 and 839,928.63
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Solution
The fourth proportional to 1,555,320.63, 2,146,342.47 and 839,928.63 is: 1,159,101.51
Step by Step Solution
- Step 1: Write the proportion equation
1,555,320.63 : 2,146,342.47 = 839,928.63 : x - Step 2: Convert to fraction form
1,555,320.63/2,146,342.47 = 839,928.63/x - Step 3: Cross multiply
1,555,320.63x = 2,146,342.47 × 839,928.63 - Step 4: Simplify right side
1,555,320.63x = 1,802,774,490,337.92 - Step 5: Solve for x
x = 1,802,774,490,337.92/1,555,320.63 - Step 6: Final answer
x = 1,159,101.51
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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.