Finding the Fourth Proportional to 1,389,295.98, 2,083,921.20 and 442,653.84
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Solution
The fourth proportional to 1,389,295.98, 2,083,921.20 and 442,653.84 is: 663,973.51
Step by Step Solution
- Step 1: Write the proportion equation
1,389,295.98 : 2,083,921.20 = 442,653.84 : x - Step 2: Convert to fraction form
1,389,295.98/2,083,921.20 = 442,653.84/x - Step 3: Cross multiply
1,389,295.98x = 2,083,921.20 × 442,653.84 - Step 4: Simplify right side
1,389,295.98x = 922,455,721,437.41 - Step 5: Solve for x
x = 922,455,721,437.41/1,389,295.98 - Step 6: Final answer
x = 663,973.51
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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.