Finding the Fourth Proportional to 1,868,475.19, 2,578,495.74 and 1,009,035.43
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Solution
The fourth proportional to 1,868,475.19, 2,578,495.74 and 1,009,035.43 is: 1,392,468.87
Step by Step Solution
- Step 1: Write the proportion equation
1,868,475.19 : 2,578,495.74 = 1,009,035.43 : x - Step 2: Convert to fraction form
1,868,475.19/2,578,495.74 = 1,009,035.43/x - Step 3: Cross multiply
1,868,475.19x = 2,578,495.74 × 1,009,035.43 - Step 4: Simplify right side
1,868,475.19x = 2,601,793,544,871.59 - Step 5: Solve for x
x = 2,601,793,544,871.59/1,868,475.19 - Step 6: Final answer
x = 1,392,468.87
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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.